Home / 149,990.06-206,986.66-82,011.43

Finding the Fourth Proportional to 149,990.06, 206,986.66 and 82,011.43

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Solution

The fourth proportional to 149,990.06, 206,986.66 and 82,011.43 is: 113,175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,990.06 : 206,986.66 = 82,011.43 : x
  2. Step 2: Convert to fraction form
    149,990.06/206,986.66 = 82,011.43/x
  3. Step 3: Cross multiply
    149,990.06x = 206,986.66 × 82,011.43
  4. Step 4: Simplify right side
    149,990.06x = 16,975,270,866.93
  5. Step 5: Solve for x
    x = 16,975,270,866.93/149,990.06
  6. Step 6: Final answer
    x = 113,175.97

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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.