Home / 138,126.08-207,054.72-88,049.92

Finding the Fourth Proportional to 138,126.08, 207,054.72 and 88,049.92

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Solution

The fourth proportional to 138,126.08, 207,054.72 and 88,049.92 is: 131,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,126.08 : 207,054.72 = 88,049.92 : x
  2. Step 2: Convert to fraction form
    138,126.08/207,054.72 = 88,049.92/x
  3. Step 3: Cross multiply
    138,126.08x = 207,054.72 × 88,049.92
  4. Step 4: Simplify right side
    138,126.08x = 18,231,151,531.62
  5. Step 5: Solve for x
    x = 18,231,151,531.62/138,126.08
  6. Step 6: Final answer
    x = 131,989.21

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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.