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Finding the Fourth Proportional to 111,063.20, 166,594.80 and 66,826.40

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Solution

The fourth proportional to 111,063.20, 166,594.80 and 66,826.40 is: 100,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,063.20 : 166,594.80 = 66,826.40 : x
  2. Step 2: Convert to fraction form
    111,063.20/166,594.80 = 66,826.40/x
  3. Step 3: Cross multiply
    111,063.20x = 166,594.80 × 66,826.40
  4. Step 4: Simplify right side
    111,063.20x = 11,132,930,742.72
  5. Step 5: Solve for x
    x = 11,132,930,742.72/111,063.20
  6. Step 6: Final answer
    x = 100,239.60

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