Home / 129,928.87-194,900.19-41,189.30

Finding the Fourth Proportional to 129,928.87, 194,900.19 and 41,189.30

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Solution

The fourth proportional to 129,928.87, 194,900.19 and 41,189.30 is: 61,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,928.87 : 194,900.19 = 41,189.30 : x
  2. Step 2: Convert to fraction form
    129,928.87/194,900.19 = 41,189.30/x
  3. Step 3: Cross multiply
    129,928.87x = 194,900.19 × 41,189.30
  4. Step 4: Simplify right side
    129,928.87x = 8,027,801,997.88
  5. Step 5: Solve for x
    x = 8,027,801,997.88/129,928.87
  6. Step 6: Final answer
    x = 61,786.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.