Home / 83,917.80-125,945.55-83,261.70

Finding the Fourth Proportional to 83,917.80, 125,945.55 and 83,261.70

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Solution

The fourth proportional to 83,917.80, 125,945.55 and 83,261.70 is: 124,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,917.80 : 125,945.55 = 83,261.70 : x
  2. Step 2: Convert to fraction form
    83,917.80/125,945.55 = 83,261.70/x
  3. Step 3: Cross multiply
    83,917.80x = 125,945.55 × 83,261.70
  4. Step 4: Simplify right side
    83,917.80x = 10,486,440,600.44
  5. Step 5: Solve for x
    x = 10,486,440,600.44/83,917.80
  6. Step 6: Final answer
    x = 124,960.86

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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.