Home / 199,105.80-274,766-109,681.80

Finding the Fourth Proportional to 199,105.80, 274,766 and 109,681.80

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Solution

The fourth proportional to 199,105.80, 274,766 and 109,681.80 is: 151,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,105.80 : 274,766 = 109,681.80 : x
  2. Step 2: Convert to fraction form
    199,105.80/274,766 = 109,681.80/x
  3. Step 3: Cross multiply
    199,105.80x = 274,766 × 109,681.80
  4. Step 4: Simplify right side
    199,105.80x = 30,136,829,458.80
  5. Step 5: Solve for x
    x = 30,136,829,458.80/199,105.80
  6. Step 6: Final answer
    x = 151,360.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.