Home / 203,729.39-281,179.85-113,114.69

Finding the Fourth Proportional to 203,729.39, 281,179.85 and 113,114.69

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Solution

The fourth proportional to 203,729.39, 281,179.85 and 113,114.69 is: 156,116.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,729.39 : 281,179.85 = 113,114.69 : x
  2. Step 2: Convert to fraction form
    203,729.39/281,179.85 = 113,114.69/x
  3. Step 3: Cross multiply
    203,729.39x = 281,179.85 × 113,114.69
  4. Step 4: Simplify right side
    203,729.39x = 31,805,569,595.52
  5. Step 5: Solve for x
    x = 31,805,569,595.52/203,729.39
  6. Step 6: Final answer
    x = 156,116.75

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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.