Home / 198,837.87-274,387.95-108,194.19

Finding the Fourth Proportional to 198,837.87, 274,387.95 and 108,194.19

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Solution

The fourth proportional to 198,837.87, 274,387.95 and 108,194.19 is: 149,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,837.87 : 274,387.95 = 108,194.19 : x
  2. Step 2: Convert to fraction form
    198,837.87/274,387.95 = 108,194.19/x
  3. Step 3: Cross multiply
    198,837.87x = 274,387.95 × 108,194.19
  4. Step 4: Simplify right side
    198,837.87x = 29,687,181,996.01
  5. Step 5: Solve for x
    x = 29,687,181,996.01/198,837.87
  6. Step 6: Final answer
    x = 149,303.46

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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.