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Finding the Fourth Proportional to 138,002.62, 207,003.92 and 44,508.37

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Solution

The fourth proportional to 138,002.62, 207,003.92 and 44,508.37 is: 66,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,002.62 : 207,003.92 = 44,508.37 : x
  2. Step 2: Convert to fraction form
    138,002.62/207,003.92 = 44,508.37/x
  3. Step 3: Cross multiply
    138,002.62x = 207,003.92 × 44,508.37
  4. Step 4: Simplify right side
    138,002.62x = 9,213,407,062.81
  5. Step 5: Solve for x
    x = 9,213,407,062.81/138,002.62
  6. Step 6: Final answer
    x = 66,762.55

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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.