Home / 203,942.14-281,439.89-113,306.47

Finding the Fourth Proportional to 203,942.14, 281,439.89 and 113,306.47

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Solution

The fourth proportional to 203,942.14, 281,439.89 and 113,306.47 is: 156,362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,942.14 : 281,439.89 = 113,306.47 : x
  2. Step 2: Convert to fraction form
    203,942.14/281,439.89 = 113,306.47/x
  3. Step 3: Cross multiply
    203,942.14x = 281,439.89 × 113,306.47
  4. Step 4: Simplify right side
    203,942.14x = 31,888,960,453.09
  5. Step 5: Solve for x
    x = 31,888,960,453.09/203,942.14
  6. Step 6: Final answer
    x = 156,362.78

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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.