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Finding the Fourth Proportional to 102,425.82, 141,370.31 and 66,553.55

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Solution

The fourth proportional to 102,425.82, 141,370.31 and 66,553.55 is: 91,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,425.82 : 141,370.31 = 66,553.55 : x
  2. Step 2: Convert to fraction form
    102,425.82/141,370.31 = 66,553.55/x
  3. Step 3: Cross multiply
    102,425.82x = 141,370.31 × 66,553.55
  4. Step 4: Simplify right side
    102,425.82x = 9,408,695,984.77
  5. Step 5: Solve for x
    x = 9,408,695,984.77/102,425.82
  6. Step 6: Final answer
    x = 91,858.64

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