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Finding the Fourth Proportional to 115,553.40, 173,330.10 and 98,640.60

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Solution

The fourth proportional to 115,553.40, 173,330.10 and 98,640.60 is: 147,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,553.40 : 173,330.10 = 98,640.60 : x
  2. Step 2: Convert to fraction form
    115,553.40/173,330.10 = 98,640.60/x
  3. Step 3: Cross multiply
    115,553.40x = 173,330.10 × 98,640.60
  4. Step 4: Simplify right side
    115,553.40x = 17,097,385,062.06
  5. Step 5: Solve for x
    x = 17,097,385,062.06/115,553.40
  6. Step 6: Final answer
    x = 147,960.90

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