Home / 108,811.38-150,177.33-74,791.38

Finding the Fourth Proportional to 108,811.38, 150,177.33 and 74,791.38

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Solution

The fourth proportional to 108,811.38, 150,177.33 and 74,791.38 is: 103,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,811.38 : 150,177.33 = 74,791.38 : x
  2. Step 2: Convert to fraction form
    108,811.38/150,177.33 = 74,791.38/x
  3. Step 3: Cross multiply
    108,811.38x = 150,177.33 × 74,791.38
  4. Step 4: Simplify right side
    108,811.38x = 11,231,969,755.42
  5. Step 5: Solve for x
    x = 11,231,969,755.42/108,811.38
  6. Step 6: Final answer
    x = 103,224.22

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1.5x scale

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.