Home / 239,306.60-358,890.78-81,531.56

Finding the Fourth Proportional to 239,306.60, 358,890.78 and 81,531.56

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Solution

The fourth proportional to 239,306.60, 358,890.78 and 81,531.56 is: 122,273.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,306.60 : 358,890.78 = 81,531.56 : x
  2. Step 2: Convert to fraction form
    239,306.60/358,890.78 = 81,531.56/x
  3. Step 3: Cross multiply
    239,306.60x = 358,890.78 × 81,531.56
  4. Step 4: Simplify right side
    239,306.60x = 29,260,925,163.02
  5. Step 5: Solve for x
    x = 29,260,925,163.02/239,306.60
  6. Step 6: Final answer
    x = 122,273.79

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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.