Home / 756,761.38-1,135,109.24-188,130.58

Finding the Fourth Proportional to 756,761.38, 1,135,109.24 and 188,130.58

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Solution

The fourth proportional to 756,761.38, 1,135,109.24 and 188,130.58 is: 282,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,761.38 : 1,135,109.24 = 188,130.58 : x
  2. Step 2: Convert to fraction form
    756,761.38/1,135,109.24 = 188,130.58/x
  3. Step 3: Cross multiply
    756,761.38x = 1,135,109.24 × 188,130.58
  4. Step 4: Simplify right side
    756,761.38x = 213,548,759,684.56
  5. Step 5: Solve for x
    x = 213,548,759,684.56/756,761.38
  6. Step 6: Final answer
    x = 282,187.71

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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.