Home / 110,896.20-166,344.30-81,371.70

Finding the Fourth Proportional to 110,896.20, 166,344.30 and 81,371.70

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Solution

The fourth proportional to 110,896.20, 166,344.30 and 81,371.70 is: 122,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,896.20 : 166,344.30 = 81,371.70 : x
  2. Step 2: Convert to fraction form
    110,896.20/166,344.30 = 81,371.70/x
  3. Step 3: Cross multiply
    110,896.20x = 166,344.30 × 81,371.70
  4. Step 4: Simplify right side
    110,896.20x = 13,535,718,476.31
  5. Step 5: Solve for x
    x = 13,535,718,476.31/110,896.20
  6. Step 6: Final answer
    x = 122,057.55

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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.