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Finding the Fourth Proportional to 107,659.11, 148,415.60 and 75,728.91

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Solution

The fourth proportional to 107,659.11, 148,415.60 and 75,728.91 is: 104,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,659.11 : 148,415.60 = 75,728.91 : x
  2. Step 2: Convert to fraction form
    107,659.11/148,415.60 = 75,728.91/x
  3. Step 3: Cross multiply
    107,659.11x = 148,415.60 × 75,728.91
  4. Step 4: Simplify right side
    107,659.11x = 11,239,351,236.35
  5. Step 5: Solve for x
    x = 11,239,351,236.35/107,659.11
  6. Step 6: Final answer
    x = 104,397.59

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