Home / 135,891.52-187,500.10-82,175.40

Finding the Fourth Proportional to 135,891.52, 187,500.10 and 82,175.40

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Solution

The fourth proportional to 135,891.52, 187,500.10 and 82,175.40 is: 113,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,891.52 : 187,500.10 = 82,175.40 : x
  2. Step 2: Convert to fraction form
    135,891.52/187,500.10 = 82,175.40/x
  3. Step 3: Cross multiply
    135,891.52x = 187,500.10 × 82,175.40
  4. Step 4: Simplify right side
    135,891.52x = 15,407,895,717.54
  5. Step 5: Solve for x
    x = 15,407,895,717.54/135,891.52
  6. Step 6: Final answer
    x = 113,383.79

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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.