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Finding the Fourth Proportional to 101,612.94, 140,218.85 and 56,286.68

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Solution

The fourth proportional to 101,612.94, 140,218.85 and 56,286.68 is: 77,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,612.94 : 140,218.85 = 56,286.68 : x
  2. Step 2: Convert to fraction form
    101,612.94/140,218.85 = 56,286.68/x
  3. Step 3: Cross multiply
    101,612.94x = 140,218.85 × 56,286.68
  4. Step 4: Simplify right side
    101,612.94x = 7,892,452,557.39
  5. Step 5: Solve for x
    x = 7,892,452,557.39/101,612.94
  6. Step 6: Final answer
    x = 77,671.73

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