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Finding the Fourth Proportional to 104,198.40, 143,596.80 and 102,643.20

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Solution

The fourth proportional to 104,198.40, 143,596.80 and 102,643.20 is: 141,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,198.40 : 143,596.80 = 102,643.20 : x
  2. Step 2: Convert to fraction form
    104,198.40/143,596.80 = 102,643.20/x
  3. Step 3: Cross multiply
    104,198.40x = 143,596.80 × 102,643.20
  4. Step 4: Simplify right side
    104,198.40x = 14,739,235,061.76
  5. Step 5: Solve for x
    x = 14,739,235,061.76/104,198.40
  6. Step 6: Final answer
    x = 141,453.56

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