Finding the Fourth Proportional to 157,781.91, 217,754.79 and 94,119.71
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Solution
The fourth proportional to 157,781.91, 217,754.79 and 94,119.71 is: 129,894.59
Step by Step Solution
- Step 1: Write the proportion equation
157,781.91 : 217,754.79 = 94,119.71 : x - Step 2: Convert to fraction form
157,781.91/217,754.79 = 94,119.71/x - Step 3: Cross multiply
157,781.91x = 217,754.79 × 94,119.71 - Step 4: Simplify right side
157,781.91x = 20,495,016,597.14 - Step 5: Solve for x
x = 20,495,016,597.14/157,781.91 - Step 6: Final answer
x = 129,894.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.