Home / 198,446.04-297,678.78-80,102.61

Finding the Fourth Proportional to 198,446.04, 297,678.78 and 80,102.61

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Solution

The fourth proportional to 198,446.04, 297,678.78 and 80,102.61 is: 120,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,446.04 : 297,678.78 = 80,102.61 : x
  2. Step 2: Convert to fraction form
    198,446.04/297,678.78 = 80,102.61/x
  3. Step 3: Cross multiply
    198,446.04x = 297,678.78 × 80,102.61
  4. Step 4: Simplify right side
    198,446.04x = 23,844,847,219.62
  5. Step 5: Solve for x
    x = 23,844,847,219.62/198,446.04
  6. Step 6: Final answer
    x = 120,157.84

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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.