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Finding the Fourth Proportional to 140,400, 210,600 and 41,904

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Solution

The fourth proportional to 140,400, 210,600 and 41,904 is: 62,856

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,400 : 210,600 = 41,904 : x
  2. Step 2: Convert to fraction form
    140,400/210,600 = 41,904/x
  3. Step 3: Cross multiply
    140,400x = 210,600 × 41,904
  4. Step 4: Simplify right side
    140,400x = 8,824,982,400
  5. Step 5: Solve for x
    x = 8,824,982,400/140,400
  6. Step 6: Final answer
    x = 62,856

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