Home / 129,760.60-194,571.49-66,554.93

Finding the Fourth Proportional to 129,760.60, 194,571.49 and 66,554.93

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Solution

The fourth proportional to 129,760.60, 194,571.49 and 66,554.93 is: 99,796.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.60 : 194,571.49 = 66,554.93 : x
  2. Step 2: Convert to fraction form
    129,760.60/194,571.49 = 66,554.93/x
  3. Step 3: Cross multiply
    129,760.60x = 194,571.49 × 66,554.93
  4. Step 4: Simplify right side
    129,760.60x = 12,949,691,896.95
  5. Step 5: Solve for x
    x = 12,949,691,896.95/129,760.60
  6. Step 6: Final answer
    x = 99,796.79

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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.