Home / 199,143.38-298,839.64-80,814.73

Finding the Fourth Proportional to 199,143.38, 298,839.64 and 80,814.73

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Solution

The fourth proportional to 199,143.38, 298,839.64 and 80,814.73 is: 121,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,143.38 : 298,839.64 = 80,814.73 : x
  2. Step 2: Convert to fraction form
    199,143.38/298,839.64 = 80,814.73/x
  3. Step 3: Cross multiply
    199,143.38x = 298,839.64 × 80,814.73
  4. Step 4: Simplify right side
    199,143.38x = 24,150,644,819.90
  5. Step 5: Solve for x
    x = 24,150,644,819.90/199,143.38
  6. Step 6: Final answer
    x = 121,272.65

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1.5x scale

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.