Home / 198,650.45-274,149.29-112,616.30

Finding the Fourth Proportional to 198,650.45, 274,149.29 and 112,616.30

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Solution

The fourth proportional to 198,650.45, 274,149.29 and 112,616.30 is: 155,417.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,650.45 : 274,149.29 = 112,616.30 : x
  2. Step 2: Convert to fraction form
    198,650.45/274,149.29 = 112,616.30/x
  3. Step 3: Cross multiply
    198,650.45x = 274,149.29 × 112,616.30
  4. Step 4: Simplify right side
    198,650.45x = 30,873,678,687.43
  5. Step 5: Solve for x
    x = 30,873,678,687.43/198,650.45
  6. Step 6: Final answer
    x = 155,417.11

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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.