Home / 198,724.53-298,086.99-80,396.88

Finding the Fourth Proportional to 198,724.53, 298,086.99 and 80,396.88

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Solution

The fourth proportional to 198,724.53, 298,086.99 and 80,396.88 is: 120,595.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,724.53 : 298,086.99 = 80,396.88 : x
  2. Step 2: Convert to fraction form
    198,724.53/298,086.99 = 80,396.88/x
  3. Step 3: Cross multiply
    198,724.53x = 298,086.99 × 80,396.88
  4. Step 4: Simplify right side
    198,724.53x = 23,965,263,964.59
  5. Step 5: Solve for x
    x = 23,965,263,964.59/198,724.53
  6. Step 6: Final answer
    x = 120,595.40

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1.5x scale

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.