Home / 220,838.17-331,262.70-80,596.75

Finding the Fourth Proportional to 220,838.17, 331,262.70 and 80,596.75

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Solution

The fourth proportional to 220,838.17, 331,262.70 and 80,596.75 is: 120,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,838.17 : 331,262.70 = 80,596.75 : x
  2. Step 2: Convert to fraction form
    220,838.17/331,262.70 = 80,596.75/x
  3. Step 3: Cross multiply
    220,838.17x = 331,262.70 × 80,596.75
  4. Step 4: Simplify right side
    220,838.17x = 26,698,697,016.23
  5. Step 5: Solve for x
    x = 26,698,697,016.23/220,838.17
  6. Step 6: Final answer
    x = 120,897.11

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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.