Home / 144,456.12-199,349.97-80,789.85

Finding the Fourth Proportional to 144,456.12, 199,349.97 and 80,789.85

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Solution

The fourth proportional to 144,456.12, 199,349.97 and 80,789.85 is: 111,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,456.12 : 199,349.97 = 80,789.85 : x
  2. Step 2: Convert to fraction form
    144,456.12/199,349.97 = 80,789.85/x
  3. Step 3: Cross multiply
    144,456.12x = 199,349.97 × 80,789.85
  4. Step 4: Simplify right side
    144,456.12x = 16,105,454,173.80
  5. Step 5: Solve for x
    x = 16,105,454,173.80/144,456.12
  6. Step 6: Final answer
    x = 111,490.29

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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.