Home / 214,979.40-322,469.10-108,691.20

Finding the Fourth Proportional to 214,979.40, 322,469.10 and 108,691.20

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Solution

The fourth proportional to 214,979.40, 322,469.10 and 108,691.20 is: 163,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,979.40 : 322,469.10 = 108,691.20 : x
  2. Step 2: Convert to fraction form
    214,979.40/322,469.10 = 108,691.20/x
  3. Step 3: Cross multiply
    214,979.40x = 322,469.10 × 108,691.20
  4. Step 4: Simplify right side
    214,979.40x = 35,049,553,441.92
  5. Step 5: Solve for x
    x = 35,049,553,441.92/214,979.40
  6. Step 6: Final answer
    x = 163,036.80

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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.