Home / 141,520.03-195,325.56-81,131.23

Finding the Fourth Proportional to 141,520.03, 195,325.56 and 81,131.23

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Solution

The fourth proportional to 141,520.03, 195,325.56 and 81,131.23 is: 111,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,520.03 : 195,325.56 = 81,131.23 : x
  2. Step 2: Convert to fraction form
    141,520.03/195,325.56 = 81,131.23/x
  3. Step 3: Cross multiply
    141,520.03x = 195,325.56 × 81,131.23
  4. Step 4: Simplify right side
    141,520.03x = 15,847,002,933.24
  5. Step 5: Solve for x
    x = 15,847,002,933.24/141,520.03
  6. Step 6: Final answer
    x = 111,977.10

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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.