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Finding the Fourth Proportional to 135,611.05, 187,147.80 and 75,178.09

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Solution

The fourth proportional to 135,611.05, 187,147.80 and 75,178.09 is: 103,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,611.05 : 187,147.80 = 75,178.09 : x
  2. Step 2: Convert to fraction form
    135,611.05/187,147.80 = 75,178.09/x
  3. Step 3: Cross multiply
    135,611.05x = 187,147.80 × 75,178.09
  4. Step 4: Simplify right side
    135,611.05x = 14,069,413,437.53
  5. Step 5: Solve for x
    x = 14,069,413,437.53/135,611.05
  6. Step 6: Final answer
    x = 103,748.28

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