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Finding the Fourth Proportional to 165,712.80, 248,569.20 and 54,904.80

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Solution

The fourth proportional to 165,712.80, 248,569.20 and 54,904.80 is: 82,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,712.80 : 248,569.20 = 54,904.80 : x
  2. Step 2: Convert to fraction form
    165,712.80/248,569.20 = 54,904.80/x
  3. Step 3: Cross multiply
    165,712.80x = 248,569.20 × 54,904.80
  4. Step 4: Simplify right side
    165,712.80x = 13,647,642,212.16
  5. Step 5: Solve for x
    x = 13,647,642,212.16/165,712.80
  6. Step 6: Final answer
    x = 82,357.20

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