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Finding the Fourth Proportional to 134,460.78, 185,619.69 and 85,427.31

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Solution

The fourth proportional to 134,460.78, 185,619.69 and 85,427.31 is: 117,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,460.78 : 185,619.69 = 85,427.31 : x
  2. Step 2: Convert to fraction form
    134,460.78/185,619.69 = 85,427.31/x
  3. Step 3: Cross multiply
    134,460.78x = 185,619.69 × 85,427.31
  4. Step 4: Simplify right side
    134,460.78x = 15,856,990,799.73
  5. Step 5: Solve for x
    x = 15,856,990,799.73/134,460.78
  6. Step 6: Final answer
    x = 117,930.23

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