Home / 141,786.44-195,663.16-81,355.76

Finding the Fourth Proportional to 141,786.44, 195,663.16 and 81,355.76

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Solution

The fourth proportional to 141,786.44, 195,663.16 and 81,355.76 is: 112,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,786.44 : 195,663.16 = 81,355.76 : x
  2. Step 2: Convert to fraction form
    141,786.44/195,663.16 = 81,355.76/x
  3. Step 3: Cross multiply
    141,786.44x = 195,663.16 × 81,355.76
  4. Step 4: Simplify right side
    141,786.44x = 15,918,325,085.80
  5. Step 5: Solve for x
    x = 15,918,325,085.80/141,786.44
  6. Step 6: Final answer
    x = 112,269.73

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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.