Home / 203,676.30-305,514.45-109,197.90

Finding the Fourth Proportional to 203,676.30, 305,514.45 and 109,197.90

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Solution

The fourth proportional to 203,676.30, 305,514.45 and 109,197.90 is: 163,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,676.30 : 305,514.45 = 109,197.90 : x
  2. Step 2: Convert to fraction form
    203,676.30/305,514.45 = 109,197.90/x
  3. Step 3: Cross multiply
    203,676.30x = 305,514.45 × 109,197.90
  4. Step 4: Simplify right side
    203,676.30x = 33,361,536,359.66
  5. Step 5: Solve for x
    x = 33,361,536,359.66/203,676.30
  6. Step 6: Final answer
    x = 163,796.85

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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.