Home / 220,666.86-331,049.97-80,425.98

Finding the Fourth Proportional to 220,666.86, 331,049.97 and 80,425.98

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Solution

The fourth proportional to 220,666.86, 331,049.97 and 80,425.98 is: 120,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,666.86 : 331,049.97 = 80,425.98 : x
  2. Step 2: Convert to fraction form
    220,666.86/331,049.97 = 80,425.98/x
  3. Step 3: Cross multiply
    220,666.86x = 331,049.97 × 80,425.98
  4. Step 4: Simplify right side
    220,666.86x = 26,625,018,266.22
  5. Step 5: Solve for x
    x = 26,625,018,266.22/220,666.86
  6. Step 6: Final answer
    x = 120,657.08

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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.