Home / 168,906.72-253,433.76-80,222.88

Finding the Fourth Proportional to 168,906.72, 253,433.76 and 80,222.88

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Solution

The fourth proportional to 168,906.72, 253,433.76 and 80,222.88 is: 120,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,906.72 : 253,433.76 = 80,222.88 : x
  2. Step 2: Convert to fraction form
    168,906.72/253,433.76 = 80,222.88/x
  3. Step 3: Cross multiply
    168,906.72x = 253,433.76 × 80,222.88
  4. Step 4: Simplify right side
    168,906.72x = 20,331,186,116.43
  5. Step 5: Solve for x
    x = 20,331,186,116.43/168,906.72
  6. Step 6: Final answer
    x = 120,369.31

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1.5x scale

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.