Home / 83,913.80-125,939.55-83,257.70

Finding the Fourth Proportional to 83,913.80, 125,939.55 and 83,257.70

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Solution

The fourth proportional to 83,913.80, 125,939.55 and 83,257.70 is: 124,954.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,913.80 : 125,939.55 = 83,257.70 : x
  2. Step 2: Convert to fraction form
    83,913.80/125,939.55 = 83,257.70/x
  3. Step 3: Cross multiply
    83,913.80x = 125,939.55 × 83,257.70
  4. Step 4: Simplify right side
    83,913.80x = 10,485,437,272.04
  5. Step 5: Solve for x
    x = 10,485,437,272.04/83,913.80
  6. Step 6: Final answer
    x = 124,954.86

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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.