Home / 203,749.20-281,168.60-113,102.80

Finding the Fourth Proportional to 203,749.20, 281,168.60 and 113,102.80

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Solution

The fourth proportional to 203,749.20, 281,168.60 and 113,102.80 is: 156,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,749.20 : 281,168.60 = 113,102.80 : x
  2. Step 2: Convert to fraction form
    203,749.20/281,168.60 = 113,102.80/x
  3. Step 3: Cross multiply
    203,749.20x = 281,168.60 × 113,102.80
  4. Step 4: Simplify right side
    203,749.20x = 31,800,955,932.08
  5. Step 5: Solve for x
    x = 31,800,955,932.08/203,749.20
  6. Step 6: Final answer
    x = 156,078.92

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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.