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Finding the Fourth Proportional to 109,918.80, 164,683.80 and 93,200.40

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Solution

The fourth proportional to 109,918.80, 164,683.80 and 93,200.40 is: 139,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,918.80 : 164,683.80 = 93,200.40 : x
  2. Step 2: Convert to fraction form
    109,918.80/164,683.80 = 93,200.40/x
  3. Step 3: Cross multiply
    109,918.80x = 164,683.80 × 93,200.40
  4. Step 4: Simplify right side
    109,918.80x = 15,348,596,033.52
  5. Step 5: Solve for x
    x = 15,348,596,033.52/109,918.80
  6. Step 6: Final answer
    x = 139,635.77

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