Home / 73,222.20-109,703.70-68,556.60

Finding the Fourth Proportional to 73,222.20, 109,703.70 and 68,556.60

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Solution

The fourth proportional to 73,222.20, 109,703.70 and 68,556.60 is: 102,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,222.20 : 109,703.70 = 68,556.60 : x
  2. Step 2: Convert to fraction form
    73,222.20/109,703.70 = 68,556.60/x
  3. Step 3: Cross multiply
    73,222.20x = 109,703.70 × 68,556.60
  4. Step 4: Simplify right side
    73,222.20x = 7,520,912,679.42
  5. Step 5: Solve for x
    x = 7,520,912,679.42/73,222.20
  6. Step 6: Final answer
    x = 102,713.56

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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.