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Finding the Fourth Proportional to 170,957.40, 256,436.10 and 161,115.90

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Solution

The fourth proportional to 170,957.40, 256,436.10 and 161,115.90 is: 241,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,957.40 : 256,436.10 = 161,115.90 : x
  2. Step 2: Convert to fraction form
    170,957.40/256,436.10 = 161,115.90/x
  3. Step 3: Cross multiply
    170,957.40x = 256,436.10 × 161,115.90
  4. Step 4: Simplify right side
    170,957.40x = 41,315,933,043.99
  5. Step 5: Solve for x
    x = 41,315,933,043.99/170,957.40
  6. Step 6: Final answer
    x = 241,673.85

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