Home / 141,767.74-195,667.82-81,379.21

Finding the Fourth Proportional to 141,767.74, 195,667.82 and 81,379.21

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Solution

The fourth proportional to 141,767.74, 195,667.82 and 81,379.21 is: 112,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,767.74 : 195,667.82 = 81,379.21 : x
  2. Step 2: Convert to fraction form
    141,767.74/195,667.82 = 81,379.21/x
  3. Step 3: Cross multiply
    141,767.74x = 195,667.82 × 81,379.21
  4. Step 4: Simplify right side
    141,767.74x = 15,923,292,614.02
  5. Step 5: Solve for x
    x = 15,923,292,614.02/141,767.74
  6. Step 6: Final answer
    x = 112,319.58

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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.