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Finding the Fourth Proportional to 159,236.46, 219,747.96 and 91,251.94

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Solution

The fourth proportional to 159,236.46, 219,747.96 and 91,251.94 is: 125,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,236.46 : 219,747.96 = 91,251.94 : x
  2. Step 2: Convert to fraction form
    159,236.46/219,747.96 = 91,251.94/x
  3. Step 3: Cross multiply
    159,236.46x = 219,747.96 × 91,251.94
  4. Step 4: Simplify right side
    159,236.46x = 20,052,427,661.04
  5. Step 5: Solve for x
    x = 20,052,427,661.04/159,236.46
  6. Step 6: Final answer
    x = 125,928.62

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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.