Finding the Fourth Proportional to 125,251.80, 187,549.65 and 91,790.70
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Solution
The fourth proportional to 125,251.80, 187,549.65 and 91,790.70 is: 137,445.64
Step by Step Solution
- Step 1: Write the proportion equation
125,251.80 : 187,549.65 = 91,790.70 : x - Step 2: Convert to fraction form
125,251.80/187,549.65 = 91,790.70/x - Step 3: Cross multiply
125,251.80x = 187,549.65 × 91,790.70 - Step 4: Simplify right side
125,251.80x = 17,215,313,658.26 - Step 5: Solve for x
x = 17,215,313,658.26/125,251.80 - Step 6: Final answer
x = 137,445.64
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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.