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Finding the Fourth Proportional to 111,765.36, 154,299.96 and 74,090.64

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Solution

The fourth proportional to 111,765.36, 154,299.96 and 74,090.64 is: 102,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,765.36 : 154,299.96 = 74,090.64 : x
  2. Step 2: Convert to fraction form
    111,765.36/154,299.96 = 74,090.64/x
  3. Step 3: Cross multiply
    111,765.36x = 154,299.96 × 74,090.64
  4. Step 4: Simplify right side
    111,765.36x = 11,432,182,788.37
  5. Step 5: Solve for x
    x = 11,432,182,788.37/111,765.36
  6. Step 6: Final answer
    x = 102,287.35

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