Home / 198,035.80-297,131.42-87,150.04

Finding the Fourth Proportional to 198,035.80, 297,131.42 and 87,150.04

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Solution

The fourth proportional to 198,035.80, 297,131.42 and 87,150.04 is: 130,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,035.80 : 297,131.42 = 87,150.04 : x
  2. Step 2: Convert to fraction form
    198,035.80/297,131.42 = 87,150.04/x
  3. Step 3: Cross multiply
    198,035.80x = 297,131.42 × 87,150.04
  4. Step 4: Simplify right side
    198,035.80x = 25,895,015,138.26
  5. Step 5: Solve for x
    x = 25,895,015,138.26/198,035.80
  6. Step 6: Final answer
    x = 130,759.26

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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.