Home / 149,954.60-206,942.92-81,976.10

Finding the Fourth Proportional to 149,954.60, 206,942.92 and 81,976.10

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Solution

The fourth proportional to 149,954.60, 206,942.92 and 81,976.10 is: 113,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,954.60 : 206,942.92 = 81,976.10 : x
  2. Step 2: Convert to fraction form
    149,954.60/206,942.92 = 81,976.10/x
  3. Step 3: Cross multiply
    149,954.60x = 206,942.92 × 81,976.10
  4. Step 4: Simplify right side
    149,954.60x = 16,964,373,504.21
  5. Step 5: Solve for x
    x = 16,964,373,504.21/149,954.60
  6. Step 6: Final answer
    x = 113,130.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.