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Finding the Fourth Proportional to 159,778.32, 220,494.87 and 88,158.39

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Solution

The fourth proportional to 159,778.32, 220,494.87 and 88,158.39 is: 121,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,778.32 : 220,494.87 = 88,158.39 : x
  2. Step 2: Convert to fraction form
    159,778.32/220,494.87 = 88,158.39/x
  3. Step 3: Cross multiply
    159,778.32x = 220,494.87 × 88,158.39
  4. Step 4: Simplify right side
    159,778.32x = 19,438,472,742.46
  5. Step 5: Solve for x
    x = 19,438,472,742.46/159,778.32
  6. Step 6: Final answer
    x = 121,659.01

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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.