Home / 131,919.06-182,046.05-72,301.78

Finding the Fourth Proportional to 131,919.06, 182,046.05 and 72,301.78

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Solution

The fourth proportional to 131,919.06, 182,046.05 and 72,301.78 is: 99,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,919.06 : 182,046.05 = 72,301.78 : x
  2. Step 2: Convert to fraction form
    131,919.06/182,046.05 = 72,301.78/x
  3. Step 3: Cross multiply
    131,919.06x = 182,046.05 × 72,301.78
  4. Step 4: Simplify right side
    131,919.06x = 13,162,253,456.97
  5. Step 5: Solve for x
    x = 13,162,253,456.97/131,919.06
  6. Step 6: Final answer
    x = 99,775.22

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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.