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Finding the Fourth Proportional to 115,736.40, 173,681.40 and 65,816.40

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Solution

The fourth proportional to 115,736.40, 173,681.40 and 65,816.40 is: 98,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,736.40 : 173,681.40 = 65,816.40 : x
  2. Step 2: Convert to fraction form
    115,736.40/173,681.40 = 65,816.40/x
  3. Step 3: Cross multiply
    115,736.40x = 173,681.40 × 65,816.40
  4. Step 4: Simplify right side
    115,736.40x = 11,431,084,494.96
  5. Step 5: Solve for x
    x = 11,431,084,494.96/115,736.40
  6. Step 6: Final answer
    x = 98,768.27

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