Home / 218,727.05-328,136.33-92,367.59

Finding the Fourth Proportional to 218,727.05, 328,136.33 and 92,367.59

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Solution

The fourth proportional to 218,727.05, 328,136.33 and 92,367.59 is: 138,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,727.05 : 328,136.33 = 92,367.59 : x
  2. Step 2: Convert to fraction form
    218,727.05/328,136.33 = 92,367.59/x
  3. Step 3: Cross multiply
    218,727.05x = 328,136.33 × 92,367.59
  4. Step 4: Simplify right side
    218,727.05x = 30,309,160,583.78
  5. Step 5: Solve for x
    x = 30,309,160,583.78/218,727.05
  6. Step 6: Final answer
    x = 138,570.70

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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.