Finding the Fourth Proportional to 138,001.05, 207,001.58 and 115,693.65
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Solution
The fourth proportional to 138,001.05, 207,001.58 and 115,693.65 is: 173,540.48
Step by Step Solution
- Step 1: Write the proportion equation
138,001.05 : 207,001.58 = 115,693.65 : x - Step 2: Convert to fraction form
138,001.05/207,001.58 = 115,693.65/x - Step 3: Cross multiply
138,001.05x = 207,001.58 × 115,693.65 - Step 4: Simplify right side
138,001.05x = 23,948,767,767.50 - Step 5: Solve for x
x = 23,948,767,767.50/138,001.05 - Step 6: Final answer
x = 173,540.48
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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.