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Finding the Fourth Proportional to 138,122.68, 207,179.16 and 44,626

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Solution

The fourth proportional to 138,122.68, 207,179.16 and 44,626 is: 66,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,122.68 : 207,179.16 = 44,626 : x
  2. Step 2: Convert to fraction form
    138,122.68/207,179.16 = 44,626/x
  3. Step 3: Cross multiply
    138,122.68x = 207,179.16 × 44,626
  4. Step 4: Simplify right side
    138,122.68x = 9,245,577,194.16
  5. Step 5: Solve for x
    x = 9,245,577,194.16/138,122.68
  6. Step 6: Final answer
    x = 66,937.43

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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.