Finding the Fourth Proportional to 157,450.99, 217,287.62 and 93,780.13
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Solution
The fourth proportional to 157,450.99, 217,287.62 and 93,780.13 is: 129,419.71
Step by Step Solution
- Step 1: Write the proportion equation
157,450.99 : 217,287.62 = 93,780.13 : x - Step 2: Convert to fraction form
157,450.99/217,287.62 = 93,780.13/x - Step 3: Cross multiply
157,450.99x = 217,287.62 × 93,780.13 - Step 4: Simplify right side
157,450.99x = 20,377,261,250.99 - Step 5: Solve for x
x = 20,377,261,250.99/157,450.99 - Step 6: Final answer
x = 129,419.71
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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.