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Finding the Fourth Proportional to 100,940.41, 139,289.66 and 58,501.68

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Solution

The fourth proportional to 100,940.41, 139,289.66 and 58,501.68 is: 80,727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,940.41 : 139,289.66 = 58,501.68 : x
  2. Step 2: Convert to fraction form
    100,940.41/139,289.66 = 58,501.68/x
  3. Step 3: Cross multiply
    100,940.41x = 139,289.66 × 58,501.68
  4. Step 4: Simplify right side
    100,940.41x = 8,148,678,521.17
  5. Step 5: Solve for x
    x = 8,148,678,521.17/100,940.41
  6. Step 6: Final answer
    x = 80,727.61

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