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Finding the Fourth Proportional to 139,643.15, 209,200.43 and 82,546.11

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Solution

The fourth proportional to 139,643.15, 209,200.43 and 82,546.11 is: 123,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,643.15 : 209,200.43 = 82,546.11 : x
  2. Step 2: Convert to fraction form
    139,643.15/209,200.43 = 82,546.11/x
  3. Step 3: Cross multiply
    139,643.15x = 209,200.43 × 82,546.11
  4. Step 4: Simplify right side
    139,643.15x = 17,268,682,436.19
  5. Step 5: Solve for x
    x = 17,268,682,436.19/139,643.15
  6. Step 6: Final answer
    x = 123,662.94

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