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Finding the Fourth Proportional to 100,400.12, 150,304.28 and 87,944.48

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Solution

The fourth proportional to 100,400.12, 150,304.28 and 87,944.48 is: 131,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,400.12 : 150,304.28 = 87,944.48 : x
  2. Step 2: Convert to fraction form
    100,400.12/150,304.28 = 87,944.48/x
  3. Step 3: Cross multiply
    100,400.12x = 150,304.28 × 87,944.48
  4. Step 4: Simplify right side
    100,400.12x = 13,218,431,746.37
  5. Step 5: Solve for x
    x = 13,218,431,746.37/100,400.12
  6. Step 6: Final answer
    x = 131,657.53

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