Home / 141,872.66-195,785.58-78,212.73

Finding the Fourth Proportional to 141,872.66, 195,785.58 and 78,212.73

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Solution

The fourth proportional to 141,872.66, 195,785.58 and 78,212.73 is: 107,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,872.66 : 195,785.58 = 78,212.73 : x
  2. Step 2: Convert to fraction form
    141,872.66/195,785.58 = 78,212.73/x
  3. Step 3: Cross multiply
    141,872.66x = 195,785.58 × 78,212.73
  4. Step 4: Simplify right side
    141,872.66x = 15,312,924,706.43
  5. Step 5: Solve for x
    x = 15,312,924,706.43/141,872.66
  6. Step 6: Final answer
    x = 107,934.29

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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.