Question

find the unknown number in the proportion
2/3 = x/122
round your answer to the nearest hundredth

Answer 1

To find the unknown number \( x \) in the proportion \( \frac{2}{3} = \frac{x}{122} \), you can use cross-multiplication:

\[
2 \cdot 122 = 3 \cdot x
\]

Calculating the left side:

\[
2 \cdot 122 = 244
\]

Now, we have the equation:

\[
244 = 3x
\]

To solve for \( x \), divide both sides by 3:

\[
x = \frac{244}{3}
\]

Calculating \( \frac{244}{3} \):

\[
x \approx 81.3333\ldots
\]

Rounding to the nearest hundredth, we get:

\[
x \approx 81.33
\]

Therefore, the unknown number \( x \) is approximately **81.33**.