Home / 138,883.11-208,601.49-131,049.57

Finding the Fourth Proportional to 138,883.11, 208,601.49 and 131,049.57

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Solution

The fourth proportional to 138,883.11, 208,601.49 and 131,049.57 is: 196,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,883.11 : 208,601.49 = 131,049.57 : x
  2. Step 2: Convert to fraction form
    138,883.11/208,601.49 = 131,049.57/x
  3. Step 3: Cross multiply
    138,883.11x = 208,601.49 × 131,049.57
  4. Step 4: Simplify right side
    138,883.11x = 27,337,135,565.86
  5. Step 5: Solve for x
    x = 27,337,135,565.86/138,883.11
  6. Step 6: Final answer
    x = 196,835.57

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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.