Home / 141,379.95-195,104.97-77,721.85

Finding the Fourth Proportional to 141,379.95, 195,104.97 and 77,721.85

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Solution

The fourth proportional to 141,379.95, 195,104.97 and 77,721.85 is: 107,256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,379.95 : 195,104.97 = 77,721.85 : x
  2. Step 2: Convert to fraction form
    141,379.95/195,104.97 = 77,721.85/x
  3. Step 3: Cross multiply
    141,379.95x = 195,104.97 × 77,721.85
  4. Step 4: Simplify right side
    141,379.95x = 15,163,919,212.59
  5. Step 5: Solve for x
    x = 15,163,919,212.59/141,379.95
  6. Step 6: Final answer
    x = 107,256.50

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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.