Home / 220,122.27-330,233.83-79,880.90

Finding the Fourth Proportional to 220,122.27, 330,233.83 and 79,880.90

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Solution

The fourth proportional to 220,122.27, 330,233.83 and 79,880.90 is: 119,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,122.27 : 330,233.83 = 79,880.90 : x
  2. Step 2: Convert to fraction form
    220,122.27/330,233.83 = 79,880.90/x
  3. Step 3: Cross multiply
    220,122.27x = 330,233.83 × 79,880.90
  4. Step 4: Simplify right side
    220,122.27x = 26,379,373,699.98
  5. Step 5: Solve for x
    x = 26,379,373,699.98/220,122.27
  6. Step 6: Final answer
    x = 119,839.64

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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.