Home / 129,936.30-194,888.03-41,190.68

Finding the Fourth Proportional to 129,936.30, 194,888.03 and 41,190.68

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Solution

The fourth proportional to 129,936.30, 194,888.03 and 41,190.68 is: 61,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,936.30 : 194,888.03 = 41,190.68 : x
  2. Step 2: Convert to fraction form
    129,936.30/194,888.03 = 41,190.68/x
  3. Step 3: Cross multiply
    129,936.30x = 194,888.03 × 41,190.68
  4. Step 4: Simplify right side
    129,936.30x = 8,027,569,299.17
  5. Step 5: Solve for x
    x = 8,027,569,299.17/129,936.30
  6. Step 6: Final answer
    x = 61,780.81

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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.