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Finding the Fourth Proportional to 118,699.15, 163,806.78 and 64,983.28

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Solution

The fourth proportional to 118,699.15, 163,806.78 and 64,983.28 is: 89,678.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,699.15 : 163,806.78 = 64,983.28 : x
  2. Step 2: Convert to fraction form
    118,699.15/163,806.78 = 64,983.28/x
  3. Step 3: Cross multiply
    118,699.15x = 163,806.78 × 64,983.28
  4. Step 4: Simplify right side
    118,699.15x = 10,644,701,850.64
  5. Step 5: Solve for x
    x = 10,644,701,850.64/118,699.15
  6. Step 6: Final answer
    x = 89,678.00

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