Home / 756,760.38-1,135,107.74-188,129.58

Finding the Fourth Proportional to 756,760.38, 1,135,107.74 and 188,129.58

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Solution

The fourth proportional to 756,760.38, 1,135,107.74 and 188,129.58 is: 282,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,760.38 : 1,135,107.74 = 188,129.58 : x
  2. Step 2: Convert to fraction form
    756,760.38/1,135,107.74 = 188,129.58/x
  3. Step 3: Cross multiply
    756,760.38x = 1,135,107.74 × 188,129.58
  4. Step 4: Simplify right side
    756,760.38x = 213,547,342,380.95
  5. Step 5: Solve for x
    x = 213,547,342,380.95/756,760.38
  6. Step 6: Final answer
    x = 282,186.21

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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.