Home / 141,515.00-195,287.49-81,121.23

Finding the Fourth Proportional to 141,515.00, 195,287.49 and 81,121.23

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Solution

The fourth proportional to 141,515.00, 195,287.49 and 81,121.23 is: 111,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,515.00 : 195,287.49 = 81,121.23 : x
  2. Step 2: Convert to fraction form
    141,515.00/195,287.49 = 81,121.23/x
  3. Step 3: Cross multiply
    141,515.00x = 195,287.49 × 81,121.23
  4. Step 4: Simplify right side
    141,515.00x = 15,841,961,392.41
  5. Step 5: Solve for x
    x = 15,841,961,392.41/141,515.00
  6. Step 6: Final answer
    x = 111,945.46

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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.