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Finding the Fourth Proportional to 110,942.20, 166,413.30 and 91,259.20

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Solution

The fourth proportional to 110,942.20, 166,413.30 and 91,259.20 is: 136,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,942.20 : 166,413.30 = 91,259.20 : x
  2. Step 2: Convert to fraction form
    110,942.20/166,413.30 = 91,259.20/x
  3. Step 3: Cross multiply
    110,942.20x = 166,413.30 × 91,259.20
  4. Step 4: Simplify right side
    110,942.20x = 15,186,744,627.36
  5. Step 5: Solve for x
    x = 15,186,744,627.36/110,942.20
  6. Step 6: Final answer
    x = 136,888.80

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