Home / 198,517.91-273,932.47-112,458.45

Finding the Fourth Proportional to 198,517.91, 273,932.47 and 112,458.45

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Solution

The fourth proportional to 198,517.91, 273,932.47 and 112,458.45 is: 155,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,517.91 : 273,932.47 = 112,458.45 : x
  2. Step 2: Convert to fraction form
    198,517.91/273,932.47 = 112,458.45/x
  3. Step 3: Cross multiply
    198,517.91x = 273,932.47 × 112,458.45
  4. Step 4: Simplify right side
    198,517.91x = 30,806,020,980.87
  5. Step 5: Solve for x
    x = 30,806,020,980.87/198,517.91
  6. Step 6: Final answer
    x = 155,180.06

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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.