Home / 198,464.04-297,705.78-80,120.61

Finding the Fourth Proportional to 198,464.04, 297,705.78 and 80,120.61

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Solution

The fourth proportional to 198,464.04, 297,705.78 and 80,120.61 is: 120,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,464.04 : 297,705.78 = 80,120.61 : x
  2. Step 2: Convert to fraction form
    198,464.04/297,705.78 = 80,120.61/x
  3. Step 3: Cross multiply
    198,464.04x = 297,705.78 × 80,120.61
  4. Step 4: Simplify right side
    198,464.04x = 23,852,368,694.13
  5. Step 5: Solve for x
    x = 23,852,368,694.13/198,464.04
  6. Step 6: Final answer
    x = 120,184.84

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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.