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Finding the Fourth Proportional to 138,785.56, 191,524.02 and 75,123.88

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Solution

The fourth proportional to 138,785.56, 191,524.02 and 75,123.88 is: 103,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,785.56 : 191,524.02 = 75,123.88 : x
  2. Step 2: Convert to fraction form
    138,785.56/191,524.02 = 75,123.88/x
  3. Step 3: Cross multiply
    138,785.56x = 191,524.02 × 75,123.88
  4. Step 4: Simplify right side
    138,785.56x = 14,388,027,495.60
  5. Step 5: Solve for x
    x = 14,388,027,495.60/138,785.56
  6. Step 6: Final answer
    x = 103,670.93

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