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Finding the Fourth Proportional to 115,916.40, 173,615.40 and 89,535.60

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Solution

The fourth proportional to 115,916.40, 173,615.40 and 89,535.60 is: 134,103.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916.40 : 173,615.40 = 89,535.60 : x
  2. Step 2: Convert to fraction form
    115,916.40/173,615.40 = 89,535.60/x
  3. Step 3: Cross multiply
    115,916.40x = 173,615.40 × 89,535.60
  4. Step 4: Simplify right side
    115,916.40x = 15,544,759,008.24
  5. Step 5: Solve for x
    x = 15,544,759,008.24/115,916.40
  6. Step 6: Final answer
    x = 134,103.19

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