Home / 198,757.85-274,375.40-130,810.50

Finding the Fourth Proportional to 198,757.85, 274,375.40 and 130,810.50

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Solution

The fourth proportional to 198,757.85, 274,375.40 and 130,810.50 is: 180,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,757.85 : 274,375.40 = 130,810.50 : x
  2. Step 2: Convert to fraction form
    198,757.85/274,375.40 = 130,810.50/x
  3. Step 3: Cross multiply
    198,757.85x = 274,375.40 × 130,810.50
  4. Step 4: Simplify right side
    198,757.85x = 35,891,182,607.65
  5. Step 5: Solve for x
    x = 35,891,182,607.65/198,757.85
  6. Step 6: Final answer
    x = 180,577.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.