Home / 198,979.44-274,577.77-112,940.18

Finding the Fourth Proportional to 198,979.44, 274,577.77 and 112,940.18

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Solution

The fourth proportional to 198,979.44, 274,577.77 and 112,940.18 is: 155,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,979.44 : 274,577.77 = 112,940.18 : x
  2. Step 2: Convert to fraction form
    198,979.44/274,577.77 = 112,940.18/x
  3. Step 3: Cross multiply
    198,979.44x = 274,577.77 × 112,940.18
  4. Step 4: Simplify right side
    198,979.44x = 31,010,862,565.75
  5. Step 5: Solve for x
    x = 31,010,862,565.75/198,979.44
  6. Step 6: Final answer
    x = 155,849.59

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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.