Home / 141,489.50-195,283.24-81,100.62

Finding the Fourth Proportional to 141,489.50, 195,283.24 and 81,100.62

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Solution

The fourth proportional to 141,489.50, 195,283.24 and 81,100.62 is: 111,934.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,489.50 : 195,283.24 = 81,100.62 : x
  2. Step 2: Convert to fraction form
    141,489.50/195,283.24 = 81,100.62/x
  3. Step 3: Cross multiply
    141,489.50x = 195,283.24 × 81,100.62
  4. Step 4: Simplify right side
    141,489.50x = 15,837,591,839.61
  5. Step 5: Solve for x
    x = 15,837,591,839.61/141,489.50
  6. Step 6: Final answer
    x = 111,934.75

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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.