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Finding the Fourth Proportional to 159,778.92, 220,494.42 and 88,158.30

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Solution

The fourth proportional to 159,778.92, 220,494.42 and 88,158.30 is: 121,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,778.92 : 220,494.42 = 88,158.30 : x
  2. Step 2: Convert to fraction form
    159,778.92/220,494.42 = 88,158.30/x
  3. Step 3: Cross multiply
    159,778.92x = 220,494.42 × 88,158.30
  4. Step 4: Simplify right side
    159,778.92x = 19,438,413,226.69
  5. Step 5: Solve for x
    x = 19,438,413,226.69/159,778.92
  6. Step 6: Final answer
    x = 121,658.18

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1.5x scale

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.