Home / 198,260.61-297,686.13-80,162.61

Finding the Fourth Proportional to 198,260.61, 297,686.13 and 80,162.61

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Solution

The fourth proportional to 198,260.61, 297,686.13 and 80,162.61 is: 120,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,260.61 : 297,686.13 = 80,162.61 : x
  2. Step 2: Convert to fraction form
    198,260.61/297,686.13 = 80,162.61/x
  3. Step 3: Cross multiply
    198,260.61x = 297,686.13 × 80,162.61
  4. Step 4: Simplify right side
    198,260.61x = 23,863,297,141.60
  5. Step 5: Solve for x
    x = 23,863,297,141.60/198,260.61
  6. Step 6: Final answer
    x = 120,363.28

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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.