Home / 203,857.12-281,332.18-113,213.50

Finding the Fourth Proportional to 203,857.12, 281,332.18 and 113,213.50

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Solution

The fourth proportional to 203,857.12, 281,332.18 and 113,213.50 is: 156,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,857.12 : 281,332.18 = 113,213.50 : x
  2. Step 2: Convert to fraction form
    203,857.12/281,332.18 = 113,213.50/x
  3. Step 3: Cross multiply
    203,857.12x = 281,332.18 × 113,213.50
  4. Step 4: Simplify right side
    203,857.12x = 31,850,600,760.43
  5. Step 5: Solve for x
    x = 31,850,600,760.43/203,857.12
  6. Step 6: Final answer
    x = 156,239.83

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1.5x scale

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.