Home / 141,819.20-212,469.60-115,380.80

Finding the Fourth Proportional to 141,819.20, 212,469.60 and 115,380.80

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Solution

The fourth proportional to 141,819.20, 212,469.60 and 115,380.80 is: 172,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.20 : 212,469.60 = 115,380.80 : x
  2. Step 2: Convert to fraction form
    141,819.20/212,469.60 = 115,380.80/x
  3. Step 3: Cross multiply
    141,819.20x = 212,469.60 × 115,380.80
  4. Step 4: Simplify right side
    141,819.20x = 24,514,912,423.68
  5. Step 5: Solve for x
    x = 24,514,912,423.68/141,819.20
  6. Step 6: Final answer
    x = 172,860.32

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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.