Home / 98,286.68-147,213.92-81,226.34

Finding the Fourth Proportional to 98,286.68, 147,213.92 and 81,226.34

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Solution

The fourth proportional to 98,286.68, 147,213.92 and 81,226.34 is: 121,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,286.68 : 147,213.92 = 81,226.34 : x
  2. Step 2: Convert to fraction form
    98,286.68/147,213.92 = 81,226.34/x
  3. Step 3: Cross multiply
    98,286.68x = 147,213.92 × 81,226.34
  4. Step 4: Simplify right side
    98,286.68x = 11,957,647,937.70
  5. Step 5: Solve for x
    x = 11,957,647,937.70/98,286.68
  6. Step 6: Final answer
    x = 121,660.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.