Home / 203,853.12-281,330.31-113,209.05

Finding the Fourth Proportional to 203,853.12, 281,330.31 and 113,209.05

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Solution

The fourth proportional to 203,853.12, 281,330.31 and 113,209.05 is: 156,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,853.12 : 281,330.31 = 113,209.05 : x
  2. Step 2: Convert to fraction form
    203,853.12/281,330.31 = 113,209.05/x
  3. Step 3: Cross multiply
    203,853.12x = 281,330.31 × 113,209.05
  4. Step 4: Simplify right side
    203,853.12x = 31,849,138,610.83
  5. Step 5: Solve for x
    x = 31,849,138,610.83/203,853.12
  6. Step 6: Final answer
    x = 156,235.72

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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.