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Finding the Fourth Proportional to 138,002.68, 207,004 and 44,508.42

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Solution

The fourth proportional to 138,002.68, 207,004 and 44,508.42 is: 66,762.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,002.68 : 207,004 = 44,508.42 : x
  2. Step 2: Convert to fraction form
    138,002.68/207,004 = 44,508.42/x
  3. Step 3: Cross multiply
    138,002.68x = 207,004 × 44,508.42
  4. Step 4: Simplify right side
    138,002.68x = 9,213,420,973.68
  5. Step 5: Solve for x
    x = 9,213,420,973.68/138,002.68
  6. Step 6: Final answer
    x = 66,762.62

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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.