Finding the Fourth Proportional to 101,505.71, 140,073.47 and 56,180.99
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Solution
The fourth proportional to 101,505.71, 140,073.47 and 56,180.99 is: 77,527.33
Step by Step Solution
- Step 1: Write the proportion equation
101,505.71 : 140,073.47 = 56,180.99 : x - Step 2: Convert to fraction form
101,505.71/140,073.47 = 56,180.99/x - Step 3: Cross multiply
101,505.71x = 140,073.47 × 56,180.99 - Step 4: Simplify right side
101,505.71x = 7,869,466,497.29 - Step 5: Solve for x
x = 7,869,466,497.29/101,505.71 - Step 6: Final answer
x = 77,527.33
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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.