Home / 141,451.29-195,198.89-77,789.09

Finding the Fourth Proportional to 141,451.29, 195,198.89 and 77,789.09

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Solution

The fourth proportional to 141,451.29, 195,198.89 and 77,789.09 is: 107,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,451.29 : 195,198.89 = 77,789.09 : x
  2. Step 2: Convert to fraction form
    141,451.29/195,198.89 = 77,789.09/x
  3. Step 3: Cross multiply
    141,451.29x = 195,198.89 × 77,789.09
  4. Step 4: Simplify right side
    141,451.29x = 15,184,344,022.11
  5. Step 5: Solve for x
    x = 15,184,344,022.11/141,451.29
  6. Step 6: Final answer
    x = 107,346.80

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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.