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Finding the Fourth Proportional to 115,616.10, 173,449.35 and 65,720.10

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Solution

The fourth proportional to 115,616.10, 173,449.35 and 65,720.10 is: 98,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,616.10 : 173,449.35 = 65,720.10 : x
  2. Step 2: Convert to fraction form
    115,616.10/173,449.35 = 65,720.10/x
  3. Step 3: Cross multiply
    115,616.10x = 173,449.35 × 65,720.10
  4. Step 4: Simplify right side
    115,616.10x = 11,399,108,626.94
  5. Step 5: Solve for x
    x = 11,399,108,626.94/115,616.10
  6. Step 6: Final answer
    x = 98,594.47

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