Home / 199,430.48-275,215.82-108,786.85

Finding the Fourth Proportional to 199,430.48, 275,215.82 and 108,786.85

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Solution

The fourth proportional to 199,430.48, 275,215.82 and 108,786.85 is: 150,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,430.48 : 275,215.82 = 108,786.85 : x
  2. Step 2: Convert to fraction form
    199,430.48/275,215.82 = 108,786.85/x
  3. Step 3: Cross multiply
    199,430.48x = 275,215.82 × 108,786.85
  4. Step 4: Simplify right side
    199,430.48x = 29,939,861,439.93
  5. Step 5: Solve for x
    x = 29,939,861,439.93/199,430.48
  6. Step 6: Final answer
    x = 150,126.81

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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.