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Finding the Fourth Proportional to 138,305.32, 207,525.72 and 49,565.68

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Solution

The fourth proportional to 138,305.32, 207,525.72 and 49,565.68 is: 74,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,305.32 : 207,525.72 = 49,565.68 : x
  2. Step 2: Convert to fraction form
    138,305.32/207,525.72 = 49,565.68/x
  3. Step 3: Cross multiply
    138,305.32x = 207,525.72 × 49,565.68
  4. Step 4: Simplify right side
    138,305.32x = 10,286,153,429.29
  5. Step 5: Solve for x
    x = 10,286,153,429.29/138,305.32
  6. Step 6: Final answer
    x = 74,372.80

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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.