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Finding the Fourth Proportional to 139,610.97, 192,662.22 and 75,949.02

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Solution

The fourth proportional to 139,610.97, 192,662.22 and 75,949.02 is: 104,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,610.97 : 192,662.22 = 75,949.02 : x
  2. Step 2: Convert to fraction form
    139,610.97/192,662.22 = 75,949.02/x
  3. Step 3: Cross multiply
    139,610.97x = 192,662.22 × 75,949.02
  4. Step 4: Simplify right side
    139,610.97x = 14,632,506,800.02
  5. Step 5: Solve for x
    x = 14,632,506,800.02/139,610.97
  6. Step 6: Final answer
    x = 104,809.15

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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.