Home / 262,720.51-394,136.17-85,213.73

Finding the Fourth Proportional to 262,720.51, 394,136.17 and 85,213.73

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Solution

The fourth proportional to 262,720.51, 394,136.17 and 85,213.73 is: 127,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,720.51 : 394,136.17 = 85,213.73 : x
  2. Step 2: Convert to fraction form
    262,720.51/394,136.17 = 85,213.73/x
  3. Step 3: Cross multiply
    262,720.51x = 394,136.17 × 85,213.73
  4. Step 4: Simplify right side
    262,720.51x = 33,585,813,173.61
  5. Step 5: Solve for x
    x = 33,585,813,173.61/262,720.51
  6. Step 6: Final answer
    x = 127,838.57

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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.