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Finding the Fourth Proportional to 120,413.58, 166,172.07 and 66,699.42

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Solution

The fourth proportional to 120,413.58, 166,172.07 and 66,699.42 is: 92,045.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,413.58 : 166,172.07 = 66,699.42 : x
  2. Step 2: Convert to fraction form
    120,413.58/166,172.07 = 66,699.42/x
  3. Step 3: Cross multiply
    120,413.58x = 166,172.07 × 66,699.42
  4. Step 4: Simplify right side
    120,413.58x = 11,083,580,689.20
  5. Step 5: Solve for x
    x = 11,083,580,689.20/120,413.58
  6. Step 6: Final answer
    x = 92,045.94

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