Home / 131,003.40-196,286.40-112,195.20

Finding the Fourth Proportional to 131,003.40, 196,286.40 and 112,195.20

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Solution

The fourth proportional to 131,003.40, 196,286.40 and 112,195.20 is: 168,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,003.40 : 196,286.40 = 112,195.20 : x
  2. Step 2: Convert to fraction form
    131,003.40/196,286.40 = 112,195.20/x
  3. Step 3: Cross multiply
    131,003.40x = 196,286.40 × 112,195.20
  4. Step 4: Simplify right side
    131,003.40x = 22,022,391,905.28
  5. Step 5: Solve for x
    x = 22,022,391,905.28/131,003.40
  6. Step 6: Final answer
    x = 168,105.50

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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.