Home / 220,086.72-329,911.38-131,207.04

Finding the Fourth Proportional to 220,086.72, 329,911.38 and 131,207.04

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Solution

The fourth proportional to 220,086.72, 329,911.38 and 131,207.04 is: 196,680.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,086.72 : 329,911.38 = 131,207.04 : x
  2. Step 2: Convert to fraction form
    220,086.72/329,911.38 = 131,207.04/x
  3. Step 3: Cross multiply
    220,086.72x = 329,911.38 × 131,207.04
  4. Step 4: Simplify right side
    220,086.72x = 43,286,695,632.12
  5. Step 5: Solve for x
    x = 43,286,695,632.12/220,086.72
  6. Step 6: Final answer
    x = 196,680.18

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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.