In a ratio, the product of the two outer terms is 128, one of the inner terms is 16, and what is the other inner term.
在一个比例中，两个外项的积是128，其中一个内项是16，另一个内项是多少．
<gadget id="calculator">128 / 16</gadget>
<output>8</output>

<result>8</result>