Home / 203,918.94-281,453.12-113,306.04

Finding the Fourth Proportional to 203,918.94, 281,453.12 and 113,306.04

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Solution

The fourth proportional to 203,918.94, 281,453.12 and 113,306.04 is: 156,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,918.94 : 281,453.12 = 113,306.04 : x
  2. Step 2: Convert to fraction form
    203,918.94/281,453.12 = 113,306.04/x
  3. Step 3: Cross multiply
    203,918.94x = 281,453.12 × 113,306.04
  4. Step 4: Simplify right side
    203,918.94x = 31,890,338,472.84
  5. Step 5: Solve for x
    x = 31,890,338,472.84/203,918.94
  6. Step 6: Final answer
    x = 156,387.33

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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.