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Finding the Fourth Proportional to 159,643.98, 220,318.68 and 88,023.90

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Solution

The fourth proportional to 159,643.98, 220,318.68 and 88,023.90 is: 121,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,643.98 : 220,318.68 = 88,023.90 : x
  2. Step 2: Convert to fraction form
    159,643.98/220,318.68 = 88,023.90/x
  3. Step 3: Cross multiply
    159,643.98x = 220,318.68 × 88,023.90
  4. Step 4: Simplify right side
    159,643.98x = 19,393,309,456.45
  5. Step 5: Solve for x
    x = 19,393,309,456.45/159,643.98
  6. Step 6: Final answer
    x = 121,478.49

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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.