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Finding the Fourth Proportional to 144,208.80, 216,187.92 and 69,291.36

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Solution

The fourth proportional to 144,208.80, 216,187.92 and 69,291.36 is: 103,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,208.80 : 216,187.92 = 69,291.36 : x
  2. Step 2: Convert to fraction form
    144,208.80/216,187.92 = 69,291.36/x
  3. Step 3: Cross multiply
    144,208.80x = 216,187.92 × 69,291.36
  4. Step 4: Simplify right side
    144,208.80x = 14,979,954,992.37
  5. Step 5: Solve for x
    x = 14,979,954,992.37/144,208.80
  6. Step 6: Final answer
    x = 103,876.84

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