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Finding the Fourth Proportional to 105,918.42, 158,965.14 and 43,632.66

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Solution

The fourth proportional to 105,918.42, 158,965.14 and 43,632.66 is: 65,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,918.42 : 158,965.14 = 43,632.66 : x
  2. Step 2: Convert to fraction form
    105,918.42/158,965.14 = 43,632.66/x
  3. Step 3: Cross multiply
    105,918.42x = 158,965.14 × 43,632.66
  4. Step 4: Simplify right side
    105,918.42x = 6,936,071,905.47
  5. Step 5: Solve for x
    x = 6,936,071,905.47/105,918.42
  6. Step 6: Final answer
    x = 65,485.04

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