Home / 131,132.28-196,785.90-68,010.60

Finding the Fourth Proportional to 131,132.28, 196,785.90 and 68,010.60

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Solution

The fourth proportional to 131,132.28, 196,785.90 and 68,010.60 is: 102,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,132.28 : 196,785.90 = 68,010.60 : x
  2. Step 2: Convert to fraction form
    131,132.28/196,785.90 = 68,010.60/x
  3. Step 3: Cross multiply
    131,132.28x = 196,785.90 × 68,010.60
  4. Step 4: Simplify right side
    131,132.28x = 13,383,527,130.54
  5. Step 5: Solve for x
    x = 13,383,527,130.54/131,132.28
  6. Step 6: Final answer
    x = 102,061.27

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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.