$("#priceDifference div.row:not(:nth-of-type(3))").show();

<div class="row" id="priceDifference" style="display:none;">
          <div class="row">
            <div class="col-lg-4 col-xs-1 col-lg-offset-1 form-group">
              <label style="padding-top:5px;">&nbsp;GoBumpr Quoted Price</label>
            </div>
            <div class="col-xs-4">
              <div class="form-group">
                <input type="number" name="quoted_amt" id="gobumpr_quoted_amt<?php echo $booking_id; ?>" class="form-control" style="max-width:280px;"/>
              </div>
            </div>
          </div>
          <div class="row">
            <div class="col-lg-4 col-xs-1 col-lg-offset-1 form-group">
              <label style="padding-top:5px;">&nbsp;Garage Quoted Price</label>
            </div>
            <div class="col-xs-4">
              <div class="form-group">
                <input type="number" name="garage_quoted_amt" id="garage_quoted_amt<?php echo $booking_id; ?>" class="form-control" style="max-width:280px;"/>
              </div>
            </div>
          </div>
          <div class="row">
            <div class="col-lg-4 col-xs-1 col-lg-offset-1 form-group">
              <label style="padding-top:5px;">&nbsp;Local Garage Quote</label>
            </div>
            <div class="col-xs-4">
              <div class="form-group">
                <input type="number" name="local_garage_quoted_amt" id="local_garage_quoted_amt<?php echo $booking_id; ?>" class="form-control" style="max-width:280px;"/>
              </div>
            </div>
          </div>
        </div>

$("#priceDifference div.gt(1)").hide();