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Finding the Fourth Proportional to 107,788.80, 161,683.20 and 92,236.80

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Solution

The fourth proportional to 107,788.80, 161,683.20 and 92,236.80 is: 138,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,788.80 : 161,683.20 = 92,236.80 : x
  2. Step 2: Convert to fraction form
    107,788.80/161,683.20 = 92,236.80/x
  3. Step 3: Cross multiply
    107,788.80x = 161,683.20 × 92,236.80
  4. Step 4: Simplify right side
    107,788.80x = 14,913,140,981.76
  5. Step 5: Solve for x
    x = 14,913,140,981.76/107,788.80
  6. Step 6: Final answer
    x = 138,355.20

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