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Finding the Fourth Proportional to 110,803.90, 165,971.85 and 73,381.90

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Solution

The fourth proportional to 110,803.90, 165,971.85 and 73,381.90 is: 109,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,803.90 : 165,971.85 = 73,381.90 : x
  2. Step 2: Convert to fraction form
    110,803.90/165,971.85 = 73,381.90/x
  3. Step 3: Cross multiply
    110,803.90x = 165,971.85 × 73,381.90
  4. Step 4: Simplify right side
    110,803.90x = 12,179,329,699.52
  5. Step 5: Solve for x
    x = 12,179,329,699.52/110,803.90
  6. Step 6: Final answer
    x = 109,917.88

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