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Finding the Fourth Proportional to 102,135.80, 140,848.44 and 68,145.68

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Solution

The fourth proportional to 102,135.80, 140,848.44 and 68,145.68 is: 93,975.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,135.80 : 140,848.44 = 68,145.68 : x
  2. Step 2: Convert to fraction form
    102,135.80/140,848.44 = 68,145.68/x
  3. Step 3: Cross multiply
    102,135.80x = 140,848.44 × 68,145.68
  4. Step 4: Simplify right side
    102,135.80x = 9,598,212,720.74
  5. Step 5: Solve for x
    x = 9,598,212,720.74/102,135.80
  6. Step 6: Final answer
    x = 93,975.01

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