Home / 198,893.58-298,338.76-131,726.25

Finding the Fourth Proportional to 198,893.58, 298,338.76 and 131,726.25

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Solution

The fourth proportional to 198,893.58, 298,338.76 and 131,726.25 is: 197,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,893.58 : 298,338.76 = 131,726.25 : x
  2. Step 2: Convert to fraction form
    198,893.58/298,338.76 = 131,726.25/x
  3. Step 3: Cross multiply
    198,893.58x = 298,338.76 × 131,726.25
  4. Step 4: Simplify right side
    198,893.58x = 39,299,046,249.11
  5. Step 5: Solve for x
    x = 39,299,046,249.11/198,893.58
  6. Step 6: Final answer
    x = 197,588.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.