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Finding the Fourth Proportional to 139,851.22, 192,987.97 and 79,413.88

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Solution

The fourth proportional to 139,851.22, 192,987.97 and 79,413.88 is: 109,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,851.22 : 192,987.97 = 79,413.88 : x
  2. Step 2: Convert to fraction form
    139,851.22/192,987.97 = 79,413.88/x
  3. Step 3: Cross multiply
    139,851.22x = 192,987.97 × 79,413.88
  4. Step 4: Simplify right side
    139,851.22x = 15,325,922,810.02
  5. Step 5: Solve for x
    x = 15,325,922,810.02/139,851.22
  6. Step 6: Final answer
    x = 109,587.34

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