Home / 141,872.54-195,785.40-78,212.60

Finding the Fourth Proportional to 141,872.54, 195,785.40 and 78,212.60

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Solution

The fourth proportional to 141,872.54, 195,785.40 and 78,212.60 is: 107,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,872.54 : 195,785.40 = 78,212.60 : x
  2. Step 2: Convert to fraction form
    141,872.54/195,785.40 = 78,212.60/x
  3. Step 3: Cross multiply
    141,872.54x = 195,785.40 × 78,212.60
  4. Step 4: Simplify right side
    141,872.54x = 15,312,885,176.04
  5. Step 5: Solve for x
    x = 15,312,885,176.04/141,872.54
  6. Step 6: Final answer
    x = 107,934.10

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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.