Home / 198,776.09-274,306.10-113,887.69

Finding the Fourth Proportional to 198,776.09, 274,306.10 and 113,887.69

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Solution

The fourth proportional to 198,776.09, 274,306.10 and 113,887.69 is: 157,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,776.09 : 274,306.10 = 113,887.69 : x
  2. Step 2: Convert to fraction form
    198,776.09/274,306.10 = 113,887.69/x
  3. Step 3: Cross multiply
    198,776.09x = 274,306.10 × 113,887.69
  4. Step 4: Simplify right side
    198,776.09x = 31,240,086,826.71
  5. Step 5: Solve for x
    x = 31,240,086,826.71/198,776.09
  6. Step 6: Final answer
    x = 157,162.19

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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.