Home / 199,659.92-275,576.64-131,689.04

Finding the Fourth Proportional to 199,659.92, 275,576.64 and 131,689.04

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Solution

The fourth proportional to 199,659.92, 275,576.64 and 131,689.04 is: 181,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,659.92 : 275,576.64 = 131,689.04 : x
  2. Step 2: Convert to fraction form
    199,659.92/275,576.64 = 131,689.04/x
  3. Step 3: Cross multiply
    199,659.92x = 275,576.64 × 131,689.04
  4. Step 4: Simplify right side
    199,659.92x = 36,290,423,168.03
  5. Step 5: Solve for x
    x = 36,290,423,168.03/199,659.92
  6. Step 6: Final answer
    x = 181,761.18

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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.