Home / 203,835.08-281,301.78-113,191.40

Finding the Fourth Proportional to 203,835.08, 281,301.78 and 113,191.40

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Solution

The fourth proportional to 203,835.08, 281,301.78 and 113,191.40 is: 156,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,835.08 : 281,301.78 = 113,191.40 : x
  2. Step 2: Convert to fraction form
    203,835.08/281,301.78 = 113,191.40/x
  3. Step 3: Cross multiply
    203,835.08x = 281,301.78 × 113,191.40
  4. Step 4: Simplify right side
    203,835.08x = 31,840,942,000.55
  5. Step 5: Solve for x
    x = 31,840,942,000.55/203,835.08
  6. Step 6: Final answer
    x = 156,209.33

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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.