Home / 140,983.97-194,568.19-80,553.31

Finding the Fourth Proportional to 140,983.97, 194,568.19 and 80,553.31

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Solution

The fourth proportional to 140,983.97, 194,568.19 and 80,553.31 is: 111,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,983.97 : 194,568.19 = 80,553.31 : x
  2. Step 2: Convert to fraction form
    140,983.97/194,568.19 = 80,553.31/x
  3. Step 3: Cross multiply
    140,983.97x = 194,568.19 × 80,553.31
  4. Step 4: Simplify right side
    140,983.97x = 15,673,111,037.41
  5. Step 5: Solve for x
    x = 15,673,111,037.41/140,983.97
  6. Step 6: Final answer
    x = 111,169.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.