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Finding the Fourth Proportional to 159,921.60, 220,690.86 and 88,301.04

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Solution

The fourth proportional to 159,921.60, 220,690.86 and 88,301.04 is: 121,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,921.60 : 220,690.86 = 88,301.04 : x
  2. Step 2: Convert to fraction form
    159,921.60/220,690.86 = 88,301.04/x
  3. Step 3: Cross multiply
    159,921.60x = 220,690.86 × 88,301.04
  4. Step 4: Simplify right side
    159,921.60x = 19,487,232,456.49
  5. Step 5: Solve for x
    x = 19,487,232,456.49/159,921.60
  6. Step 6: Final answer
    x = 121,854.91

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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.