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Finding the Fourth Proportional to 166,880.49, 230,293.31 and 91,428.81

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Solution

The fourth proportional to 166,880.49, 230,293.31 and 91,428.81 is: 126,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,880.49 : 230,293.31 = 91,428.81 : x
  2. Step 2: Convert to fraction form
    166,880.49/230,293.31 = 91,428.81/x
  3. Step 3: Cross multiply
    166,880.49x = 230,293.31 × 91,428.81
  4. Step 4: Simplify right side
    166,880.49x = 21,055,442,827.12
  5. Step 5: Solve for x
    x = 21,055,442,827.12/166,880.49
  6. Step 6: Final answer
    x = 126,170.79

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