Home / 131,552.43-181,499.43-80,512.03

Finding the Fourth Proportional to 131,552.43, 181,499.43 and 80,512.03

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Solution

The fourth proportional to 131,552.43, 181,499.43 and 80,512.03 is: 111,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,552.43 : 181,499.43 = 80,512.03 : x
  2. Step 2: Convert to fraction form
    131,552.43/181,499.43 = 80,512.03/x
  3. Step 3: Cross multiply
    131,552.43x = 181,499.43 × 80,512.03
  4. Step 4: Simplify right side
    131,552.43x = 14,612,887,553.14
  5. Step 5: Solve for x
    x = 14,612,887,553.14/131,552.43
  6. Step 6: Final answer
    x = 111,080.33

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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.