Home / 135,049.26-186,342.46-81,337.75

Finding the Fourth Proportional to 135,049.26, 186,342.46 and 81,337.75

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Solution

The fourth proportional to 135,049.26, 186,342.46 and 81,337.75 is: 112,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,049.26 : 186,342.46 = 81,337.75 : x
  2. Step 2: Convert to fraction form
    135,049.26/186,342.46 = 81,337.75/x
  3. Step 3: Cross multiply
    135,049.26x = 186,342.46 × 81,337.75
  4. Step 4: Simplify right side
    135,049.26x = 15,156,676,425.87
  5. Step 5: Solve for x
    x = 15,156,676,425.87/135,049.26
  6. Step 6: Final answer
    x = 112,230.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.