Home / 141,869.44-195,780.42-78,205.84

Finding the Fourth Proportional to 141,869.44, 195,780.42 and 78,205.84

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Solution

The fourth proportional to 141,869.44, 195,780.42 and 78,205.84 is: 107,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,869.44 : 195,780.42 = 78,205.84 : x
  2. Step 2: Convert to fraction form
    141,869.44/195,780.42 = 78,205.84/x
  3. Step 3: Cross multiply
    141,869.44x = 195,780.42 × 78,205.84
  4. Step 4: Simplify right side
    141,869.44x = 15,311,172,201.65
  5. Step 5: Solve for x
    x = 15,311,172,201.65/141,869.44
  6. Step 6: Final answer
    x = 107,924.39

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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.