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Finding the Fourth Proportional to 100,767.72, 139,044.78 and 60,472.92

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Solution

The fourth proportional to 100,767.72, 139,044.78 and 60,472.92 is: 83,443.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,767.72 : 139,044.78 = 60,472.92 : x
  2. Step 2: Convert to fraction form
    100,767.72/139,044.78 = 60,472.92/x
  3. Step 3: Cross multiply
    100,767.72x = 139,044.78 × 60,472.92
  4. Step 4: Simplify right side
    100,767.72x = 8,408,443,857.36
  5. Step 5: Solve for x
    x = 8,408,443,857.36/100,767.72
  6. Step 6: Final answer
    x = 83,443.82

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