Finding the Fourth Proportional to 129,432.06, 194,223.42 and 50,542.38
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Solution
The fourth proportional to 129,432.06, 194,223.42 and 50,542.38 is: 75,842.99
Step by Step Solution
- Step 1: Write the proportion equation
129,432.06 : 194,223.42 = 50,542.38 : x - Step 2: Convert to fraction form
129,432.06/194,223.42 = 50,542.38/x - Step 3: Cross multiply
129,432.06x = 194,223.42 × 50,542.38 - Step 4: Simplify right side
129,432.06x = 9,816,513,898.54 - Step 5: Solve for x
x = 9,816,513,898.54/129,432.06 - Step 6: Final answer
x = 75,842.99
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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.