Home / 231,997.77-320,183.49-130,050.78

Finding the Fourth Proportional to 231,997.77, 320,183.49 and 130,050.78

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Solution

The fourth proportional to 231,997.77, 320,183.49 and 130,050.78 is: 179,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,997.77 : 320,183.49 = 130,050.78 : x
  2. Step 2: Convert to fraction form
    231,997.77/320,183.49 = 130,050.78/x
  3. Step 3: Cross multiply
    231,997.77x = 320,183.49 × 130,050.78
  4. Step 4: Simplify right side
    231,997.77x = 41,640,112,617.62
  5. Step 5: Solve for x
    x = 41,640,112,617.62/231,997.77
  6. Step 6: Final answer
    x = 179,484.97

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1.5x scale

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.