Finding the Fourth Proportional to 138,149.32, 207,223.97 and 44,655.07
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Solution
The fourth proportional to 138,149.32, 207,223.97 and 44,655.07 is: 66,982.60
Step by Step Solution
- Step 1: Write the proportion equation
138,149.32 : 207,223.97 = 44,655.07 : x - Step 2: Convert to fraction form
138,149.32/207,223.97 = 44,655.07/x - Step 3: Cross multiply
138,149.32x = 207,223.97 × 44,655.07 - Step 4: Simplify right side
138,149.32x = 9,253,599,849.91 - Step 5: Solve for x
x = 9,253,599,849.91/138,149.32 - Step 6: Final answer
x = 66,982.60
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Similar ratio
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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.