Home / 203,735.39-281,188.13-113,120.69

Finding the Fourth Proportional to 203,735.39, 281,188.13 and 113,120.69

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Solution

The fourth proportional to 203,735.39, 281,188.13 and 113,120.69 is: 156,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,735.39 : 281,188.13 = 113,120.69 : x
  2. Step 2: Convert to fraction form
    203,735.39/281,188.13 = 113,120.69/x
  3. Step 3: Cross multiply
    203,735.39x = 281,188.13 × 113,120.69
  4. Step 4: Simplify right side
    203,735.39x = 31,808,193,313.87
  5. Step 5: Solve for x
    x = 31,808,193,313.87/203,735.39
  6. Step 6: Final answer
    x = 156,125.03

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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.