Home / 159,724.72-220,412.17-88,102.90

Finding the Fourth Proportional to 159,724.72, 220,412.17 and 88,102.90

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Solution

The fourth proportional to 159,724.72, 220,412.17 and 88,102.90 is: 121,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,724.72 : 220,412.17 = 88,102.90 : x
  2. Step 2: Convert to fraction form
    159,724.72/220,412.17 = 88,102.90/x
  3. Step 3: Cross multiply
    159,724.72x = 220,412.17 × 88,102.90
  4. Step 4: Simplify right side
    159,724.72x = 19,418,951,372.29
  5. Step 5: Solve for x
    x = 19,418,951,372.29/159,724.72
  6. Step 6: Final answer
    x = 121,577.62

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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.