Home / 141,406.82-195,138.78-77,743.25

Finding the Fourth Proportional to 141,406.82, 195,138.78 and 77,743.25

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Solution

The fourth proportional to 141,406.82, 195,138.78 and 77,743.25 is: 107,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.82 : 195,138.78 = 77,743.25 : x
  2. Step 2: Convert to fraction form
    141,406.82/195,138.78 = 77,743.25/x
  3. Step 3: Cross multiply
    141,406.82x = 195,138.78 × 77,743.25
  4. Step 4: Simplify right side
    141,406.82x = 15,170,722,958.24
  5. Step 5: Solve for x
    x = 15,170,722,958.24/141,406.82
  6. Step 6: Final answer
    x = 107,284.24

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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.