Home / 141,873.04-195,786.09-78,213.12

Finding the Fourth Proportional to 141,873.04, 195,786.09 and 78,213.12

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Solution

The fourth proportional to 141,873.04, 195,786.09 and 78,213.12 is: 107,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,873.04 : 195,786.09 = 78,213.12 : x
  2. Step 2: Convert to fraction form
    141,873.04/195,786.09 = 78,213.12/x
  3. Step 3: Cross multiply
    141,873.04x = 195,786.09 × 78,213.12
  4. Step 4: Simplify right side
    141,873.04x = 15,313,040,951.50
  5. Step 5: Solve for x
    x = 15,313,040,951.50/141,873.04
  6. Step 6: Final answer
    x = 107,934.82

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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.