Home / 199,072.20-298,205.10-123,961.80

Finding the Fourth Proportional to 199,072.20, 298,205.10 and 123,961.80

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Solution

The fourth proportional to 199,072.20, 298,205.10 and 123,961.80 is: 185,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,072.20 : 298,205.10 = 123,961.80 : x
  2. Step 2: Convert to fraction form
    199,072.20/298,205.10 = 123,961.80/x
  3. Step 3: Cross multiply
    199,072.20x = 298,205.10 × 123,961.80
  4. Step 4: Simplify right side
    199,072.20x = 36,966,040,965.18
  5. Step 5: Solve for x
    x = 36,966,040,965.18/199,072.20
  6. Step 6: Final answer
    x = 185,691.63

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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.