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Finding the Fourth Proportional to 135,893.05, 203,855.78 and 65,721.94

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Solution

The fourth proportional to 135,893.05, 203,855.78 and 65,721.94 is: 98,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,893.05 : 203,855.78 = 65,721.94 : x
  2. Step 2: Convert to fraction form
    135,893.05/203,855.78 = 65,721.94/x
  3. Step 3: Cross multiply
    135,893.05x = 203,855.78 × 65,721.94
  4. Step 4: Simplify right side
    135,893.05x = 13,397,796,996.48
  5. Step 5: Solve for x
    x = 13,397,796,996.48/135,893.05
  6. Step 6: Final answer
    x = 98,590.75

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