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Finding the Fourth Proportional to 159,452.74, 220,044.78 and 87,832.75

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Solution

The fourth proportional to 159,452.74, 220,044.78 and 87,832.75 is: 121,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,452.74 : 220,044.78 = 87,832.75 : x
  2. Step 2: Convert to fraction form
    159,452.74/220,044.78 = 87,832.75/x
  3. Step 3: Cross multiply
    159,452.74x = 220,044.78 × 87,832.75
  4. Step 4: Simplify right side
    159,452.74x = 19,327,138,150.55
  5. Step 5: Solve for x
    x = 19,327,138,150.55/159,452.74
  6. Step 6: Final answer
    x = 121,209.19

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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.