Home / 206,972.10-310,398.18-80,584.20

Finding the Fourth Proportional to 206,972.10, 310,398.18 and 80,584.20

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Solution

The fourth proportional to 206,972.10, 310,398.18 and 80,584.20 is: 120,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,972.10 : 310,398.18 = 80,584.20 : x
  2. Step 2: Convert to fraction form
    206,972.10/310,398.18 = 80,584.20/x
  3. Step 3: Cross multiply
    206,972.10x = 310,398.18 × 80,584.20
  4. Step 4: Simplify right side
    206,972.10x = 25,013,189,016.76
  5. Step 5: Solve for x
    x = 25,013,189,016.76/206,972.10
  6. Step 6: Final answer
    x = 120,852.95

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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.