Home / 141,635.82-195,458.74-77,974.68

Finding the Fourth Proportional to 141,635.82, 195,458.74 and 77,974.68

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Solution

The fourth proportional to 141,635.82, 195,458.74 and 77,974.68 is: 107,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,635.82 : 195,458.74 = 77,974.68 : x
  2. Step 2: Convert to fraction form
    141,635.82/195,458.74 = 77,974.68/x
  3. Step 3: Cross multiply
    141,635.82x = 195,458.74 × 77,974.68
  4. Step 4: Simplify right side
    141,635.82x = 15,240,832,704.70
  5. Step 5: Solve for x
    x = 15,240,832,704.70/141,635.82
  6. Step 6: Final answer
    x = 107,605.78

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1.5x scale

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.