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Finding the Fourth Proportional to 118,413.69, 163,408.97 and 64,697.55

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Solution

The fourth proportional to 118,413.69, 163,408.97 and 64,697.55 is: 89,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,413.69 : 163,408.97 = 64,697.55 : x
  2. Step 2: Convert to fraction form
    118,413.69/163,408.97 = 64,697.55/x
  3. Step 3: Cross multiply
    118,413.69x = 163,408.97 × 64,697.55
  4. Step 4: Simplify right side
    118,413.69x = 10,572,159,683.54
  5. Step 5: Solve for x
    x = 10,572,159,683.54/118,413.69
  6. Step 6: Final answer
    x = 89,281.57

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