Home / 128,512.10-192,781.22-44,261.30

Finding the Fourth Proportional to 128,512.10, 192,781.22 and 44,261.30

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Solution

The fourth proportional to 128,512.10, 192,781.22 and 44,261.30 is: 66,396.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,512.10 : 192,781.22 = 44,261.30 : x
  2. Step 2: Convert to fraction form
    128,512.10/192,781.22 = 44,261.30/x
  3. Step 3: Cross multiply
    128,512.10x = 192,781.22 × 44,261.30
  4. Step 4: Simplify right side
    128,512.10x = 8,532,747,673.43
  5. Step 5: Solve for x
    x = 8,532,747,673.43/128,512.10
  6. Step 6: Final answer
    x = 66,396.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.