Home / 198,517.02-297,608.13-86,112.60

Finding the Fourth Proportional to 198,517.02, 297,608.13 and 86,112.60

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Solution

The fourth proportional to 198,517.02, 297,608.13 and 86,112.60 is: 129,096.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,517.02 : 297,608.13 = 86,112.60 : x
  2. Step 2: Convert to fraction form
    198,517.02/297,608.13 = 86,112.60/x
  3. Step 3: Cross multiply
    198,517.02x = 297,608.13 × 86,112.60
  4. Step 4: Simplify right side
    198,517.02x = 25,627,809,855.44
  5. Step 5: Solve for x
    x = 25,627,809,855.44/198,517.02
  6. Step 6: Final answer
    x = 129,096.29

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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.