Home / 198,415.38-297,621.44-80,084.91

Finding the Fourth Proportional to 198,415.38, 297,621.44 and 80,084.91

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Solution

The fourth proportional to 198,415.38, 297,621.44 and 80,084.91 is: 120,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,415.38 : 297,621.44 = 80,084.91 : x
  2. Step 2: Convert to fraction form
    198,415.38/297,621.44 = 80,084.91/x
  3. Step 3: Cross multiply
    198,415.38x = 297,621.44 × 80,084.91
  4. Step 4: Simplify right side
    198,415.38x = 23,834,985,836.05
  5. Step 5: Solve for x
    x = 23,834,985,836.05/198,415.38
  6. Step 6: Final answer
    x = 120,126.71

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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.