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Finding the Fourth Proportional to 120,879.40, 181,141.64 and 60,825.28

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Solution

The fourth proportional to 120,879.40, 181,141.64 and 60,825.28 is: 91,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,879.40 : 181,141.64 = 60,825.28 : x
  2. Step 2: Convert to fraction form
    120,879.40/181,141.64 = 60,825.28/x
  3. Step 3: Cross multiply
    120,879.40x = 181,141.64 × 60,825.28
  4. Step 4: Simplify right side
    120,879.40x = 11,017,990,972.66
  5. Step 5: Solve for x
    x = 11,017,990,972.66/120,879.40
  6. Step 6: Final answer
    x = 91,148.62

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