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Finding the Fourth Proportional to 159,508.80, 220,119.12 and 87,895.44

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Solution

The fourth proportional to 159,508.80, 220,119.12 and 87,895.44 is: 121,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,508.80 : 220,119.12 = 87,895.44 : x
  2. Step 2: Convert to fraction form
    159,508.80/220,119.12 = 87,895.44/x
  3. Step 3: Cross multiply
    159,508.80x = 220,119.12 × 87,895.44
  4. Step 4: Simplify right side
    159,508.80x = 19,347,466,904.81
  5. Step 5: Solve for x
    x = 19,347,466,904.81/159,508.80
  6. Step 6: Final answer
    x = 121,294.04

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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.