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Finding the Fourth Proportional to 121,146.50, 166,829.40 and 94,243.70

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Solution

The fourth proportional to 121,146.50, 166,829.40 and 94,243.70 is: 129,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,146.50 : 166,829.40 = 94,243.70 : x
  2. Step 2: Convert to fraction form
    121,146.50/166,829.40 = 94,243.70/x
  3. Step 3: Cross multiply
    121,146.50x = 166,829.40 × 94,243.70
  4. Step 4: Simplify right side
    121,146.50x = 15,722,619,090.63
  5. Step 5: Solve for x
    x = 15,722,619,090.63/121,146.50
  6. Step 6: Final answer
    x = 129,781.87

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