Home / 141,451.33-195,198.95-77,789.13

Finding the Fourth Proportional to 141,451.33, 195,198.95 and 77,789.13

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Solution

The fourth proportional to 141,451.33, 195,198.95 and 77,789.13 is: 107,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,451.33 : 195,198.95 = 77,789.13 : x
  2. Step 2: Convert to fraction form
    141,451.33/195,198.95 = 77,789.13/x
  3. Step 3: Cross multiply
    141,451.33x = 195,198.95 × 77,789.13
  4. Step 4: Simplify right side
    141,451.33x = 15,184,356,108.47
  5. Step 5: Solve for x
    x = 15,184,356,108.47/141,451.33
  6. Step 6: Final answer
    x = 107,346.86

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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.