Home / 141,865.63-195,775.91-78,205.71

Finding the Fourth Proportional to 141,865.63, 195,775.91 and 78,205.71

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Solution

The fourth proportional to 141,865.63, 195,775.91 and 78,205.71 is: 107,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,865.63 : 195,775.91 = 78,205.71 : x
  2. Step 2: Convert to fraction form
    141,865.63/195,775.91 = 78,205.71/x
  3. Step 3: Cross multiply
    141,865.63x = 195,775.91 × 78,205.71
  4. Step 4: Simplify right side
    141,865.63x = 15,310,794,042.45
  5. Step 5: Solve for x
    x = 15,310,794,042.45/141,865.63
  6. Step 6: Final answer
    x = 107,924.62

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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.