Finding the Fourth Proportional to 123,489.24, 185,143.95 and 39,221.70
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Solution
The fourth proportional to 123,489.24, 185,143.95 and 39,221.70 is: 58,803.99
Step by Step Solution
- Step 1: Write the proportion equation
123,489.24 : 185,143.95 = 39,221.70 : x - Step 2: Convert to fraction form
123,489.24/185,143.95 = 39,221.70/x - Step 3: Cross multiply
123,489.24x = 185,143.95 × 39,221.70 - Step 4: Simplify right side
123,489.24x = 7,261,660,463.72 - Step 5: Solve for x
x = 7,261,660,463.72/123,489.24 - Step 6: Final answer
x = 58,803.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.