It takes 4 hours for Uncle Zhang to walk around the rectangular orchard at a speed of 12 kilometers per hour. The orchard is three times as long as it is wide. How big is the orchard?
张伯伯以每小时12千米的速度绕着长方形果园走一圈要4小时，果园的长是宽的3倍，果园的占地面积有多大？
<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">18 * 6</gadget>
<output>108</output>

<result>108</result>