Home / 198,567.29-297,887.86-80,321.66

Finding the Fourth Proportional to 198,567.29, 297,887.86 and 80,321.66

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Solution

The fourth proportional to 198,567.29, 297,887.86 and 80,321.66 is: 120,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,567.29 : 297,887.86 = 80,321.66 : x
  2. Step 2: Convert to fraction form
    198,567.29/297,887.86 = 80,321.66/x
  3. Step 3: Cross multiply
    198,567.29x = 297,887.86 × 80,321.66
  4. Step 4: Simplify right side
    198,567.29x = 23,926,847,409.05
  5. Step 5: Solve for x
    x = 23,926,847,409.05/198,567.29
  6. Step 6: Final answer
    x = 120,497.43

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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.