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Finding the Fourth Proportional to 117,960.40, 177,286.20 and 115,886.80

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Solution

The fourth proportional to 117,960.40, 177,286.20 and 115,886.80 is: 174,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,960.40 : 177,286.20 = 115,886.80 : x
  2. Step 2: Convert to fraction form
    117,960.40/177,286.20 = 115,886.80/x
  3. Step 3: Cross multiply
    117,960.40x = 177,286.20 × 115,886.80
  4. Step 4: Simplify right side
    117,960.40x = 20,545,130,402.16
  5. Step 5: Solve for x
    x = 20,545,130,402.16/117,960.40
  6. Step 6: Final answer
    x = 174,169.72

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