Finding the Fourth Proportional to 138,375.08, 207,351.16 and 82,104.36
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Solution
The fourth proportional to 138,375.08, 207,351.16 and 82,104.36 is: 123,031.07
Step by Step Solution
- Step 1: Write the proportion equation
138,375.08 : 207,351.16 = 82,104.36 : x - Step 2: Convert to fraction form
138,375.08/207,351.16 = 82,104.36/x - Step 3: Cross multiply
138,375.08x = 207,351.16 × 82,104.36 - Step 4: Simplify right side
138,375.08x = 17,024,434,287.06 - Step 5: Solve for x
x = 17,024,434,287.06/138,375.08 - Step 6: Final answer
x = 123,031.07
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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.