Home / 198,410.31-297,613.85-80,079.84

Finding the Fourth Proportional to 198,410.31, 297,613.85 and 80,079.84

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Solution

The fourth proportional to 198,410.31, 297,613.85 and 80,079.84 is: 120,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,410.31 : 297,613.85 = 80,079.84 : x
  2. Step 2: Convert to fraction form
    198,410.31/297,613.85 = 80,079.84/x
  3. Step 3: Cross multiply
    198,410.31x = 297,613.85 × 80,079.84
  4. Step 4: Simplify right side
    198,410.31x = 23,832,869,089.38
  5. Step 5: Solve for x
    x = 23,832,869,089.38/198,410.31
  6. Step 6: Final answer
    x = 120,119.11

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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.