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Finding the Fourth Proportional to 115,221.84, 159,026.76 and 67,472.40

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Solution

The fourth proportional to 115,221.84, 159,026.76 and 67,472.40 is: 93,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,221.84 : 159,026.76 = 67,472.40 : x
  2. Step 2: Convert to fraction form
    115,221.84/159,026.76 = 67,472.40/x
  3. Step 3: Cross multiply
    115,221.84x = 159,026.76 × 67,472.40
  4. Step 4: Simplify right side
    115,221.84x = 10,729,917,161.42
  5. Step 5: Solve for x
    x = 10,729,917,161.42/115,221.84
  6. Step 6: Final answer
    x = 93,123.99

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