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Finding the Fourth Proportional to 115,890.80, 173,836.20 and 104,226.80

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Solution

The fourth proportional to 115,890.80, 173,836.20 and 104,226.80 is: 156,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,890.80 : 173,836.20 = 104,226.80 : x
  2. Step 2: Convert to fraction form
    115,890.80/173,836.20 = 104,226.80/x
  3. Step 3: Cross multiply
    115,890.80x = 173,836.20 × 104,226.80
  4. Step 4: Simplify right side
    115,890.80x = 18,118,390,850.16
  5. Step 5: Solve for x
    x = 18,118,390,850.16/115,890.80
  6. Step 6: Final answer
    x = 156,340.20

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