Home / 206,840.03-310,087.80-80,450.57

Finding the Fourth Proportional to 206,840.03, 310,087.80 and 80,450.57

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Solution

The fourth proportional to 206,840.03, 310,087.80 and 80,450.57 is: 120,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,840.03 : 310,087.80 = 80,450.57 : x
  2. Step 2: Convert to fraction form
    206,840.03/310,087.80 = 80,450.57/x
  3. Step 3: Cross multiply
    206,840.03x = 310,087.80 × 80,450.57
  4. Step 4: Simplify right side
    206,840.03x = 24,946,741,035.27
  5. Step 5: Solve for x
    x = 24,946,741,035.27/206,840.03
  6. Step 6: Final answer
    x = 120,608.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.