Finding the Fourth Proportional to 138,176.80, 207,265.20 and 95,967.70
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Solution
The fourth proportional to 138,176.80, 207,265.20 and 95,967.70 is: 143,951.55
Step by Step Solution
- Step 1: Write the proportion equation
138,176.80 : 207,265.20 = 95,967.70 : x - Step 2: Convert to fraction form
138,176.80/207,265.20 = 95,967.70/x - Step 3: Cross multiply
138,176.80x = 207,265.20 × 95,967.70 - Step 4: Simplify right side
138,176.80x = 19,890,764,534.04 - Step 5: Solve for x
x = 19,890,764,534.04/138,176.80 - Step 6: Final answer
x = 143,951.55
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1.5x scale
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.