Home / 131,105.32-197,542.39-108,243.88

Finding the Fourth Proportional to 131,105.32, 197,542.39 and 108,243.88

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Solution

The fourth proportional to 131,105.32, 197,542.39 and 108,243.88 is: 163,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,105.32 : 197,542.39 = 108,243.88 : x
  2. Step 2: Convert to fraction form
    131,105.32/197,542.39 = 108,243.88/x
  3. Step 3: Cross multiply
    131,105.32x = 197,542.39 × 108,243.88
  4. Step 4: Simplify right side
    131,105.32x = 21,382,754,758.07
  5. Step 5: Solve for x
    x = 21,382,754,758.07/131,105.32
  6. Step 6: Final answer
    x = 163,096.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.