Home / 131,242.56-196,568.39-91,974.98

Finding the Fourth Proportional to 131,242.56, 196,568.39 and 91,974.98

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Solution

The fourth proportional to 131,242.56, 196,568.39 and 91,974.98 is: 137,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,242.56 : 196,568.39 = 91,974.98 : x
  2. Step 2: Convert to fraction form
    131,242.56/196,568.39 = 91,974.98/x
  3. Step 3: Cross multiply
    131,242.56x = 196,568.39 × 91,974.98
  4. Step 4: Simplify right side
    131,242.56x = 18,079,373,738.88
  5. Step 5: Solve for x
    x = 18,079,373,738.88/131,242.56
  6. Step 6: Final answer
    x = 137,755.42

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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.