Home / 198,261.85-297,688.01-80,163.85

Finding the Fourth Proportional to 198,261.85, 297,688.01 and 80,163.85

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Solution

The fourth proportional to 198,261.85, 297,688.01 and 80,163.85 is: 120,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,261.85 : 297,688.01 = 80,163.85 : x
  2. Step 2: Convert to fraction form
    198,261.85/297,688.01 = 80,163.85/x
  3. Step 3: Cross multiply
    198,261.85x = 297,688.01 × 80,163.85
  4. Step 4: Simplify right side
    198,261.85x = 23,863,816,980.44
  5. Step 5: Solve for x
    x = 23,863,816,980.44/198,261.85
  6. Step 6: Final answer
    x = 120,365.15

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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.