Home / 198,854.25-274,418.91-109,430.25

Finding the Fourth Proportional to 198,854.25, 274,418.91 and 109,430.25

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Solution

The fourth proportional to 198,854.25, 274,418.91 and 109,430.25 is: 151,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,854.25 : 274,418.91 = 109,430.25 : x
  2. Step 2: Convert to fraction form
    198,854.25/274,418.91 = 109,430.25/x
  3. Step 3: Cross multiply
    198,854.25x = 274,418.91 × 109,430.25
  4. Step 4: Simplify right side
    198,854.25x = 30,029,729,926.03
  5. Step 5: Solve for x
    x = 30,029,729,926.03/198,854.25
  6. Step 6: Final answer
    x = 151,013.77

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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.