Home / 139,198.65-192,092.07-81,844.44

Finding the Fourth Proportional to 139,198.65, 192,092.07 and 81,844.44

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Solution

The fourth proportional to 139,198.65, 192,092.07 and 81,844.44 is: 112,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,198.65 : 192,092.07 = 81,844.44 : x
  2. Step 2: Convert to fraction form
    139,198.65/192,092.07 = 81,844.44/x
  3. Step 3: Cross multiply
    139,198.65x = 192,092.07 × 81,844.44
  4. Step 4: Simplify right side
    139,198.65x = 15,721,667,897.59
  5. Step 5: Solve for x
    x = 15,721,667,897.59/139,198.65
  6. Step 6: Final answer
    x = 112,944.11

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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.