3 looms weave 144 meters in 4 hours. According to this calculation, we need to weave 180 meters more in 5 hours. How many more looms need to be added?
3台织布机4小时织布144米，照这样计算要在5小时内再多织布180米，需要增加几台同样的织布机？
<gadget id="calculator">144 / 3 / 4</gadget>
<output>12</output>

<gadget id="calculator">180 / 12 / 5</gadget>
<output>3</output>

<result>3</result>