Home / 138,250.34-207,433.83-82,197.53

Finding the Fourth Proportional to 138,250.34, 207,433.83 and 82,197.53

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Solution

The fourth proportional to 138,250.34, 207,433.83 and 82,197.53 is: 123,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,250.34 : 207,433.83 = 82,197.53 : x
  2. Step 2: Convert to fraction form
    138,250.34/207,433.83 = 82,197.53/x
  3. Step 3: Cross multiply
    138,250.34x = 207,433.83 × 82,197.53
  4. Step 4: Simplify right side
    138,250.34x = 17,050,548,464.44
  5. Step 5: Solve for x
    x = 17,050,548,464.44/138,250.34
  6. Step 6: Final answer
    x = 123,330.97

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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.