Home / 198,418.59-273,819.72-107,776.32

Finding the Fourth Proportional to 198,418.59, 273,819.72 and 107,776.32

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Solution

The fourth proportional to 198,418.59, 273,819.72 and 107,776.32 is: 148,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,418.59 : 273,819.72 = 107,776.32 : x
  2. Step 2: Convert to fraction form
    198,418.59/273,819.72 = 107,776.32/x
  3. Step 3: Cross multiply
    198,418.59x = 273,819.72 × 107,776.32
  4. Step 4: Simplify right side
    198,418.59x = 29,511,281,765.03
  5. Step 5: Solve for x
    x = 29,511,281,765.03/198,418.59
  6. Step 6: Final answer
    x = 148,732.44

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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.