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Finding the Fourth Proportional to 99,978.88, 150,017.20 and 43,811.28

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Solution

The fourth proportional to 99,978.88, 150,017.20 and 43,811.28 is: 65,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,978.88 : 150,017.20 = 43,811.28 : x
  2. Step 2: Convert to fraction form
    99,978.88/150,017.20 = 43,811.28/x
  3. Step 3: Cross multiply
    99,978.88x = 150,017.20 × 43,811.28
  4. Step 4: Simplify right side
    99,978.88x = 6,572,445,554.02
  5. Step 5: Solve for x
    x = 6,572,445,554.02/99,978.88
  6. Step 6: Final answer
    x = 65,738.34

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