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Finding the Fourth Proportional to 209,687.68, 314,383.20 and 67,488.88

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Solution

The fourth proportional to 209,687.68, 314,383.20 and 67,488.88 is: 101,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,687.68 : 314,383.20 = 67,488.88 : x
  2. Step 2: Convert to fraction form
    209,687.68/314,383.20 = 67,488.88/x
  3. Step 3: Cross multiply
    209,687.68x = 314,383.20 × 67,488.88
  4. Step 4: Simplify right side
    209,687.68x = 21,217,370,058.82
  5. Step 5: Solve for x
    x = 21,217,370,058.82/209,687.68
  6. Step 6: Final answer
    x = 101,185.58

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