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Finding the Fourth Proportional to 109,910.10, 164,865.15 and 70,544.10

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Solution

The fourth proportional to 109,910.10, 164,865.15 and 70,544.10 is: 105,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,910.10 : 164,865.15 = 70,544.10 : x
  2. Step 2: Convert to fraction form
    109,910.10/164,865.15 = 70,544.10/x
  3. Step 3: Cross multiply
    109,910.10x = 164,865.15 × 70,544.10
  4. Step 4: Simplify right side
    109,910.10x = 11,630,263,628.12
  5. Step 5: Solve for x
    x = 11,630,263,628.12/109,910.10
  6. Step 6: Final answer
    x = 105,816.15

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