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Finding the Fourth Proportional to 200,191.36, 275,943.84 and 135,640.96

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Solution

The fourth proportional to 200,191.36, 275,943.84 and 135,640.96 is: 186,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,191.36 : 275,943.84 = 135,640.96 : x
  2. Step 2: Convert to fraction form
    200,191.36/275,943.84 = 135,640.96/x
  3. Step 3: Cross multiply
    200,191.36x = 275,943.84 × 135,640.96
  4. Step 4: Simplify right side
    200,191.36x = 37,429,287,363.69
  5. Step 5: Solve for x
    x = 37,429,287,363.69/200,191.36
  6. Step 6: Final answer
    x = 186,967.55

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