Home / 149,286.73-206,015.90-81,304.00

Finding the Fourth Proportional to 149,286.73, 206,015.90 and 81,304.00

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Solution

The fourth proportional to 149,286.73, 206,015.90 and 81,304.00 is: 112,199.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,286.73 : 206,015.90 = 81,304.00 : x
  2. Step 2: Convert to fraction form
    149,286.73/206,015.90 = 81,304.00/x
  3. Step 3: Cross multiply
    149,286.73x = 206,015.90 × 81,304.00
  4. Step 4: Simplify right side
    149,286.73x = 16,749,915,297.00
  5. Step 5: Solve for x
    x = 16,749,915,297.00/149,286.73
  6. Step 6: Final answer
    x = 112,199.63

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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.