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Finding the Fourth Proportional to 111,939.92, 154,487.97 and 83,596.40

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Solution

The fourth proportional to 111,939.92, 154,487.97 and 83,596.40 is: 115,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,939.92 : 154,487.97 = 83,596.40 : x
  2. Step 2: Convert to fraction form
    111,939.92/154,487.97 = 83,596.40/x
  3. Step 3: Cross multiply
    111,939.92x = 154,487.97 × 83,596.40
  4. Step 4: Simplify right side
    111,939.92x = 12,914,637,362.87
  5. Step 5: Solve for x
    x = 12,914,637,362.87/111,939.92
  6. Step 6: Final answer
    x = 115,371.16

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