Home / 99,761.43-149,449.17-83,558.59

Finding the Fourth Proportional to 99,761.43, 149,449.17 and 83,558.59

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Solution

The fourth proportional to 99,761.43, 149,449.17 and 83,558.59 is: 125,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,761.43 : 149,449.17 = 83,558.59 : x
  2. Step 2: Convert to fraction form
    99,761.43/149,449.17 = 83,558.59/x
  3. Step 3: Cross multiply
    99,761.43x = 149,449.17 × 83,558.59
  4. Step 4: Simplify right side
    99,761.43x = 12,487,761,921.87
  5. Step 5: Solve for x
    x = 12,487,761,921.87/99,761.43
  6. Step 6: Final answer
    x = 125,176.25

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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.