Home / 99,786.82-149,679.96-40,608.49

Finding the Fourth Proportional to 99,786.82, 149,679.96 and 40,608.49

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Solution

The fourth proportional to 99,786.82, 149,679.96 and 40,608.49 is: 60,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,786.82 : 149,679.96 = 40,608.49 : x
  2. Step 2: Convert to fraction form
    99,786.82/149,679.96 = 40,608.49/x
  3. Step 3: Cross multiply
    99,786.82x = 149,679.96 × 40,608.49
  4. Step 4: Simplify right side
    99,786.82x = 6,078,277,158.86
  5. Step 5: Solve for x
    x = 6,078,277,158.86/99,786.82
  6. Step 6: Final answer
    x = 60,912.63

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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.