Home / 203,713.72-281,122.18-113,069.42

Finding the Fourth Proportional to 203,713.72, 281,122.18 and 113,069.42

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Solution

The fourth proportional to 203,713.72, 281,122.18 and 113,069.42 is: 156,034.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,713.72 : 281,122.18 = 113,069.42 : x
  2. Step 2: Convert to fraction form
    203,713.72/281,122.18 = 113,069.42/x
  3. Step 3: Cross multiply
    203,713.72x = 281,122.18 × 113,069.42
  4. Step 4: Simplify right side
    203,713.72x = 31,786,321,207.66
  5. Step 5: Solve for x
    x = 31,786,321,207.66/203,713.72
  6. Step 6: Final answer
    x = 156,034.27

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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.