Home / 203,905.43-281,385.73-113,257.79

Finding the Fourth Proportional to 203,905.43, 281,385.73 and 113,257.79

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Solution

The fourth proportional to 203,905.43, 281,385.73 and 113,257.79 is: 156,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,905.43 : 281,385.73 = 113,257.79 : x
  2. Step 2: Convert to fraction form
    203,905.43/281,385.73 = 113,257.79/x
  3. Step 3: Cross multiply
    203,905.43x = 281,385.73 × 113,257.79
  4. Step 4: Simplify right side
    203,905.43x = 31,869,125,917.34
  5. Step 5: Solve for x
    x = 31,869,125,917.34/203,905.43
  6. Step 6: Final answer
    x = 156,293.66

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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.