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Finding the Fourth Proportional to 105,475.52, 158,238.66 and 43,146.20

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Solution

The fourth proportional to 105,475.52, 158,238.66 and 43,146.20 is: 64,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,475.52 : 158,238.66 = 43,146.20 : x
  2. Step 2: Convert to fraction form
    105,475.52/158,238.66 = 43,146.20/x
  3. Step 3: Cross multiply
    105,475.52x = 158,238.66 × 43,146.20
  4. Step 4: Simplify right side
    105,475.52x = 6,827,396,872.09
  5. Step 5: Solve for x
    x = 6,827,396,872.09/105,475.52
  6. Step 6: Final answer
    x = 64,729.68

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