Finding the Fourth Proportional to 138,512.62, 207,790.80 and 44,996.50
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Solution
The fourth proportional to 138,512.62, 207,790.80 and 44,996.50 is: 67,501.85
Step by Step Solution
- Step 1: Write the proportion equation
138,512.62 : 207,790.80 = 44,996.50 : x - Step 2: Convert to fraction form
138,512.62/207,790.80 = 44,996.50/x - Step 3: Cross multiply
138,512.62x = 207,790.80 × 44,996.50 - Step 4: Simplify right side
138,512.62x = 9,349,858,732.20 - Step 5: Solve for x
x = 9,349,858,732.20/138,512.62 - Step 6: Final answer
x = 67,501.85
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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.