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Finding the Fourth Proportional to 159,822.20, 220,559.10 and 88,207.76

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Solution

The fourth proportional to 159,822.20, 220,559.10 and 88,207.76 is: 121,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,822.20 : 220,559.10 = 88,207.76 : x
  2. Step 2: Convert to fraction form
    159,822.20/220,559.10 = 88,207.76/x
  3. Step 3: Cross multiply
    159,822.20x = 220,559.10 × 88,207.76
  4. Step 4: Simplify right side
    159,822.20x = 19,455,024,158.62
  5. Step 5: Solve for x
    x = 19,455,024,158.62/159,822.20
  6. Step 6: Final answer
    x = 121,729.17

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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.