Home / 99,708.16-137,591.04-54,997.12

Finding the Fourth Proportional to 99,708.16, 137,591.04 and 54,997.12

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Solution

The fourth proportional to 99,708.16, 137,591.04 and 54,997.12 is: 75,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,708.16 : 137,591.04 = 54,997.12 : x
  2. Step 2: Convert to fraction form
    99,708.16/137,591.04 = 54,997.12/x
  3. Step 3: Cross multiply
    99,708.16x = 137,591.04 × 54,997.12
  4. Step 4: Simplify right side
    99,708.16x = 7,567,110,937.80
  5. Step 5: Solve for x
    x = 7,567,110,937.80/99,708.16
  6. Step 6: Final answer
    x = 75,892.59

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1.5x scale

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.