Home / 99,680.40-149,542.20-33,109.20

Finding the Fourth Proportional to 99,680.40, 149,542.20 and 33,109.20

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Solution

The fourth proportional to 99,680.40, 149,542.20 and 33,109.20 is: 49,670.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680.40 : 149,542.20 = 33,109.20 : x
  2. Step 2: Convert to fraction form
    99,680.40/149,542.20 = 33,109.20/x
  3. Step 3: Cross multiply
    99,680.40x = 149,542.20 × 33,109.20
  4. Step 4: Simplify right side
    99,680.40x = 4,951,222,608.24
  5. Step 5: Solve for x
    x = 4,951,222,608.24/99,680.40
  6. Step 6: Final answer
    x = 49,670.97

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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.