Home / 203,903.43-281,382.98-113,255.79

Finding the Fourth Proportional to 203,903.43, 281,382.98 and 113,255.79

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Solution

The fourth proportional to 203,903.43, 281,382.98 and 113,255.79 is: 156,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,903.43 : 281,382.98 = 113,255.79 : x
  2. Step 2: Convert to fraction form
    203,903.43/281,382.98 = 113,255.79/x
  3. Step 3: Cross multiply
    203,903.43x = 281,382.98 × 113,255.79
  4. Step 4: Simplify right side
    203,903.43x = 31,868,251,126.18
  5. Step 5: Solve for x
    x = 31,868,251,126.18/203,903.43
  6. Step 6: Final answer
    x = 156,290.90

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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.