Finding the Fourth Proportional to 125,101.20, 187,651.80 and 71,957.10
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Solution
The fourth proportional to 125,101.20, 187,651.80 and 71,957.10 is: 107,935.65
Step by Step Solution
- Step 1: Write the proportion equation
125,101.20 : 187,651.80 = 71,957.10 : x - Step 2: Convert to fraction form
125,101.20/187,651.80 = 71,957.10/x - Step 3: Cross multiply
125,101.20x = 187,651.80 × 71,957.10 - Step 4: Simplify right side
125,101.20x = 13,502,879,337.78 - Step 5: Solve for x
x = 13,502,879,337.78/125,101.20 - Step 6: Final answer
x = 107,935.65
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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.