Home / 138,530.24-208,170.52-75,397.04

Finding the Fourth Proportional to 138,530.24, 208,170.52 and 75,397.04

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Solution

The fourth proportional to 138,530.24, 208,170.52 and 75,397.04 is: 113,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,530.24 : 208,170.52 = 75,397.04 : x
  2. Step 2: Convert to fraction form
    138,530.24/208,170.52 = 75,397.04/x
  3. Step 3: Cross multiply
    138,530.24x = 208,170.52 × 75,397.04
  4. Step 4: Simplify right side
    138,530.24x = 15,695,441,023.26
  5. Step 5: Solve for x
    x = 15,695,441,023.26/138,530.24
  6. Step 6: Final answer
    x = 113,299.75

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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.