Home / 198,418.85-273,820.06-107,776.57

Finding the Fourth Proportional to 198,418.85, 273,820.06 and 107,776.57

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Solution

The fourth proportional to 198,418.85, 273,820.06 and 107,776.57 is: 148,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,418.85 : 273,820.06 = 107,776.57 : x
  2. Step 2: Convert to fraction form
    198,418.85/273,820.06 = 107,776.57/x
  3. Step 3: Cross multiply
    198,418.85x = 273,820.06 × 107,776.57
  4. Step 4: Simplify right side
    198,418.85x = 29,511,386,863.99
  5. Step 5: Solve for x
    x = 29,511,386,863.99/198,418.85
  6. Step 6: Final answer
    x = 148,732.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.