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Finding the Fourth Proportional to 139,940.76, 192,982.58 and 88,863.40

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Solution

The fourth proportional to 139,940.76, 192,982.58 and 88,863.40 is: 122,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,940.76 : 192,982.58 = 88,863.40 : x
  2. Step 2: Convert to fraction form
    139,940.76/192,982.58 = 88,863.40/x
  3. Step 3: Cross multiply
    139,940.76x = 192,982.58 × 88,863.40
  4. Step 4: Simplify right side
    139,940.76x = 17,149,088,199.57
  5. Step 5: Solve for x
    x = 17,149,088,199.57/139,940.76
  6. Step 6: Final answer
    x = 122,545.34

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