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Finding the Fourth Proportional to 115,390.80, 173,226.60 and 73,270.80

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Solution

The fourth proportional to 115,390.80, 173,226.60 and 73,270.80 is: 109,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,390.80 : 173,226.60 = 73,270.80 : x
  2. Step 2: Convert to fraction form
    115,390.80/173,226.60 = 73,270.80/x
  3. Step 3: Cross multiply
    115,390.80x = 173,226.60 × 73,270.80
  4. Step 4: Simplify right side
    115,390.80x = 12,692,451,563.28
  5. Step 5: Solve for x
    x = 12,692,451,563.28/115,390.80
  6. Step 6: Final answer
    x = 109,995.35

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