Finding the Fourth Proportional to 145,057.29, 216,593.21 and 129,966.99
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Solution
The fourth proportional to 145,057.29, 216,593.21 and 129,966.99 is: 194,061.03
Step by Step Solution
- Step 1: Write the proportion equation
145,057.29 : 216,593.21 = 129,966.99 : x - Step 2: Convert to fraction form
145,057.29/216,593.21 = 129,966.99/x - Step 3: Cross multiply
145,057.29x = 216,593.21 × 129,966.99 - Step 4: Simplify right side
145,057.29x = 28,149,966,908.30 - Step 5: Solve for x
x = 28,149,966,908.30/145,057.29 - Step 6: Final answer
x = 194,061.03
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.