Home / 95,145.09-131,175.75-81,859.06

Finding the Fourth Proportional to 95,145.09, 131,175.75 and 81,859.06

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Solution

The fourth proportional to 95,145.09, 131,175.75 and 81,859.06 is: 112,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,145.09 : 131,175.75 = 81,859.06 : x
  2. Step 2: Convert to fraction form
    95,145.09/131,175.75 = 81,859.06/x
  3. Step 3: Cross multiply
    95,145.09x = 131,175.75 × 81,859.06
  4. Step 4: Simplify right side
    95,145.09x = 10,737,923,589.80
  5. Step 5: Solve for x
    x = 10,737,923,589.80/95,145.09
  6. Step 6: Final answer
    x = 112,858.41

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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.