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Finding the Fourth Proportional to 139,969.77, 193,161.96 and 86,290.26

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Solution

The fourth proportional to 139,969.77, 193,161.96 and 86,290.26 is: 119,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969.77 : 193,161.96 = 86,290.26 : x
  2. Step 2: Convert to fraction form
    139,969.77/193,161.96 = 86,290.26/x
  3. Step 3: Cross multiply
    139,969.77x = 193,161.96 × 86,290.26
  4. Step 4: Simplify right side
    139,969.77x = 16,667,995,750.51
  5. Step 5: Solve for x
    x = 16,667,995,750.51/139,969.77
  6. Step 6: Final answer
    x = 119,082.83

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