Home / 203,872.23-281,345.45-113,229.78

Finding the Fourth Proportional to 203,872.23, 281,345.45 and 113,229.78

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Solution

The fourth proportional to 203,872.23, 281,345.45 and 113,229.78 is: 156,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,872.23 : 281,345.45 = 113,229.78 : x
  2. Step 2: Convert to fraction form
    203,872.23/281,345.45 = 113,229.78/x
  3. Step 3: Cross multiply
    203,872.23x = 281,345.45 × 113,229.78
  4. Step 4: Simplify right side
    203,872.23x = 31,856,682,841.35
  5. Step 5: Solve for x
    x = 31,856,682,841.35/203,872.23
  6. Step 6: Final answer
    x = 156,258.08

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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.