Home / 199,331.75-298,997.64-81,012.33

Finding the Fourth Proportional to 199,331.75, 298,997.64 and 81,012.33

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Solution

The fourth proportional to 199,331.75, 298,997.64 and 81,012.33 is: 121,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331.75 : 298,997.64 = 81,012.33 : x
  2. Step 2: Convert to fraction form
    199,331.75/298,997.64 = 81,012.33/x
  3. Step 3: Cross multiply
    199,331.75x = 298,997.64 × 81,012.33
  4. Step 4: Simplify right side
    199,331.75x = 24,222,495,480.90
  5. Step 5: Solve for x
    x = 24,222,495,480.90/199,331.75
  6. Step 6: Final answer
    x = 121,518.50

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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.