Home / 131,132.20-196,698.30-68,794.60

Finding the Fourth Proportional to 131,132.20, 196,698.30 and 68,794.60

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Solution

The fourth proportional to 131,132.20, 196,698.30 and 68,794.60 is: 103,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,132.20 : 196,698.30 = 68,794.60 : x
  2. Step 2: Convert to fraction form
    131,132.20/196,698.30 = 68,794.60/x
  3. Step 3: Cross multiply
    131,132.20x = 196,698.30 × 68,794.60
  4. Step 4: Simplify right side
    131,132.20x = 13,531,780,869.18
  5. Step 5: Solve for x
    x = 13,531,780,869.18/131,132.20
  6. Step 6: Final answer
    x = 103,191.90

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1.5x scale

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.