Home / 99,179.72-148,515.60-54,757.16

Finding the Fourth Proportional to 99,179.72, 148,515.60 and 54,757.16

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Solution

The fourth proportional to 99,179.72, 148,515.60 and 54,757.16 is: 81,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,179.72 : 148,515.60 = 54,757.16 : x
  2. Step 2: Convert to fraction form
    99,179.72/148,515.60 = 54,757.16/x
  3. Step 3: Cross multiply
    99,179.72x = 148,515.60 × 54,757.16
  4. Step 4: Simplify right side
    99,179.72x = 8,132,292,471.70
  5. Step 5: Solve for x
    x = 8,132,292,471.70/99,179.72
  6. Step 6: Final answer
    x = 81,995.52

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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.