Home / 198,859.38-274,425.99-109,435.38

Finding the Fourth Proportional to 198,859.38, 274,425.99 and 109,435.38

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Solution

The fourth proportional to 198,859.38, 274,425.99 and 109,435.38 is: 151,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,859.38 : 274,425.99 = 109,435.38 : x
  2. Step 2: Convert to fraction form
    198,859.38/274,425.99 = 109,435.38/x
  3. Step 3: Cross multiply
    198,859.38x = 274,425.99 × 109,435.38
  4. Step 4: Simplify right side
    198,859.38x = 30,031,911,950.35
  5. Step 5: Solve for x
    x = 30,031,911,950.35/198,859.38
  6. Step 6: Final answer
    x = 151,020.85

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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.