Home / 203,745.11-281,165.78-113,101.79

Finding the Fourth Proportional to 203,745.11, 281,165.78 and 113,101.79

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Solution

The fourth proportional to 203,745.11, 281,165.78 and 113,101.79 is: 156,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,745.11 : 281,165.78 = 113,101.79 : x
  2. Step 2: Convert to fraction form
    203,745.11/281,165.78 = 113,101.79/x
  3. Step 3: Cross multiply
    203,745.11x = 281,165.78 × 113,101.79
  4. Step 4: Simplify right side
    203,745.11x = 31,800,351,881.67
  5. Step 5: Solve for x
    x = 31,800,351,881.67/203,745.11
  6. Step 6: Final answer
    x = 156,079.10

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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.