Home / 141,512.55-195,284.13-81,118.80

Finding the Fourth Proportional to 141,512.55, 195,284.13 and 81,118.80

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Solution

The fourth proportional to 141,512.55, 195,284.13 and 81,118.80 is: 111,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,512.55 : 195,284.13 = 81,118.80 : x
  2. Step 2: Convert to fraction form
    141,512.55/195,284.13 = 81,118.80/x
  3. Step 3: Cross multiply
    141,512.55x = 195,284.13 × 81,118.80
  4. Step 4: Simplify right side
    141,512.55x = 15,841,214,284.64
  5. Step 5: Solve for x
    x = 15,841,214,284.64/141,512.55
  6. Step 6: Final answer
    x = 111,942.12

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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.