Home / 159,723.97-220,419.29-91,754.10

Finding the Fourth Proportional to 159,723.97, 220,419.29 and 91,754.10

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Solution

The fourth proportional to 159,723.97, 220,419.29 and 91,754.10 is: 126,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,723.97 : 220,419.29 = 91,754.10 : x
  2. Step 2: Convert to fraction form
    159,723.97/220,419.29 = 91,754.10/x
  3. Step 3: Cross multiply
    159,723.97x = 220,419.29 × 91,754.10
  4. Step 4: Simplify right side
    159,723.97x = 20,224,373,805.97
  5. Step 5: Solve for x
    x = 20,224,373,805.97/159,723.97
  6. Step 6: Final answer
    x = 126,620.78

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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.