Home / 199,236.20-298,934.40-80,916.80

Finding the Fourth Proportional to 199,236.20, 298,934.40 and 80,916.80

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Solution

The fourth proportional to 199,236.20, 298,934.40 and 80,916.80 is: 121,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,236.20 : 298,934.40 = 80,916.80 : x
  2. Step 2: Convert to fraction form
    199,236.20/298,934.40 = 80,916.80/x
  3. Step 3: Cross multiply
    199,236.20x = 298,934.40 × 80,916.80
  4. Step 4: Simplify right side
    199,236.20x = 24,188,815,057.92
  5. Step 5: Solve for x
    x = 24,188,815,057.92/199,236.20
  6. Step 6: Final answer
    x = 121,407.73

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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.