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Finding the Fourth Proportional to 109,097.20, 163,516.20 and 45,917.20

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Solution

The fourth proportional to 109,097.20, 163,516.20 and 45,917.20 is: 68,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,097.20 : 163,516.20 = 45,917.20 : x
  2. Step 2: Convert to fraction form
    109,097.20/163,516.20 = 45,917.20/x
  3. Step 3: Cross multiply
    109,097.20x = 163,516.20 × 45,917.20
  4. Step 4: Simplify right side
    109,097.20x = 7,508,206,058.64
  5. Step 5: Solve for x
    x = 7,508,206,058.64/109,097.20
  6. Step 6: Final answer
    x = 68,821.25

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