Home / 198,629-274,133.24-112,601.98

Finding the Fourth Proportional to 198,629, 274,133.24 and 112,601.98

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Solution

The fourth proportional to 198,629, 274,133.24 and 112,601.98 is: 155,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,629 : 274,133.24 = 112,601.98 : x
  2. Step 2: Convert to fraction form
    198,629/274,133.24 = 112,601.98/x
  3. Step 3: Cross multiply
    198,629x = 274,133.24 × 112,601.98
  4. Step 4: Simplify right side
    198,629x = 30,867,945,607.82
  5. Step 5: Solve for x
    x = 30,867,945,607.82/198,629
  6. Step 6: Final answer
    x = 155,405.03

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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.