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Finding the Fourth Proportional to 99,637.20, 149,455.80 and 43,504.20

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Solution

The fourth proportional to 99,637.20, 149,455.80 and 43,504.20 is: 65,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,637.20 : 149,455.80 = 43,504.20 : x
  2. Step 2: Convert to fraction form
    99,637.20/149,455.80 = 43,504.20/x
  3. Step 3: Cross multiply
    99,637.20x = 149,455.80 × 43,504.20
  4. Step 4: Simplify right side
    99,637.20x = 6,501,955,014.36
  5. Step 5: Solve for x
    x = 6,501,955,014.36/99,637.20
  6. Step 6: Final answer
    x = 65,256.30

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