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Finding the Fourth Proportional to 112,163.63, 154,780.34 and 66,840.57

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Solution

The fourth proportional to 112,163.63, 154,780.34 and 66,840.57 is: 92,236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,163.63 : 154,780.34 = 66,840.57 : x
  2. Step 2: Convert to fraction form
    112,163.63/154,780.34 = 66,840.57/x
  3. Step 3: Cross multiply
    112,163.63x = 154,780.34 × 66,840.57
  4. Step 4: Simplify right side
    112,163.63x = 10,345,605,816.19
  5. Step 5: Solve for x
    x = 10,345,605,816.19/112,163.63
  6. Step 6: Final answer
    x = 92,236.73

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