Home / 198,664.13-274,147.58-112,621.88

Finding the Fourth Proportional to 198,664.13, 274,147.58 and 112,621.88

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Solution

The fourth proportional to 198,664.13, 274,147.58 and 112,621.88 is: 155,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,664.13 : 274,147.58 = 112,621.88 : x
  2. Step 2: Convert to fraction form
    198,664.13/274,147.58 = 112,621.88/x
  3. Step 3: Cross multiply
    198,664.13x = 274,147.58 × 112,621.88
  4. Step 4: Simplify right side
    198,664.13x = 30,875,013,923.20
  5. Step 5: Solve for x
    x = 30,875,013,923.20/198,664.13
  6. Step 6: Final answer
    x = 155,413.13

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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.