Home / 136,404.28-188,247.37-82,691.56

Finding the Fourth Proportional to 136,404.28, 188,247.37 and 82,691.56

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Solution

The fourth proportional to 136,404.28, 188,247.37 and 82,691.56 is: 114,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,404.28 : 188,247.37 = 82,691.56 : x
  2. Step 2: Convert to fraction form
    136,404.28/188,247.37 = 82,691.56/x
  3. Step 3: Cross multiply
    136,404.28x = 188,247.37 × 82,691.56
  4. Step 4: Simplify right side
    136,404.28x = 15,566,468,013.85
  5. Step 5: Solve for x
    x = 15,566,468,013.85/136,404.28
  6. Step 6: Final answer
    x = 114,120.09

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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.