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Finding the Fourth Proportional to 136,644.83, 188,657.60 and 85,727.37

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Solution

The fourth proportional to 136,644.83, 188,657.60 and 85,727.37 is: 118,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,644.83 : 188,657.60 = 85,727.37 : x
  2. Step 2: Convert to fraction form
    136,644.83/188,657.60 = 85,727.37/x
  3. Step 3: Cross multiply
    136,644.83x = 188,657.60 × 85,727.37
  4. Step 4: Simplify right side
    136,644.83x = 16,173,119,449.88
  5. Step 5: Solve for x
    x = 16,173,119,449.88/136,644.83
  6. Step 6: Final answer
    x = 118,358.81

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