Home / 138,449.11-207,670.68-38,606.64

Finding the Fourth Proportional to 138,449.11, 207,670.68 and 38,606.64

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Solution

The fourth proportional to 138,449.11, 207,670.68 and 38,606.64 is: 57,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,449.11 : 207,670.68 = 38,606.64 : x
  2. Step 2: Convert to fraction form
    138,449.11/207,670.68 = 38,606.64/x
  3. Step 3: Cross multiply
    138,449.11x = 207,670.68 × 38,606.64
  4. Step 4: Simplify right side
    138,449.11x = 8,017,467,797.01
  5. Step 5: Solve for x
    x = 8,017,467,797.01/138,449.11
  6. Step 6: Final answer
    x = 57,909.13

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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.