Home / 109,229.20-164,016.60-79,853.20

Finding the Fourth Proportional to 109,229.20, 164,016.60 and 79,853.20

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Solution

The fourth proportional to 109,229.20, 164,016.60 and 79,853.20 is: 119,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,229.20 : 164,016.60 = 79,853.20 : x
  2. Step 2: Convert to fraction form
    109,229.20/164,016.60 = 79,853.20/x
  3. Step 3: Cross multiply
    109,229.20x = 164,016.60 × 79,853.20
  4. Step 4: Simplify right side
    109,229.20x = 13,097,250,363.12
  5. Step 5: Solve for x
    x = 13,097,250,363.12/109,229.20
  6. Step 6: Final answer
    x = 119,906.13

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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.