Home / 262,720.95-394,136.82-85,214.18

Finding the Fourth Proportional to 262,720.95, 394,136.82 and 85,214.18

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Solution

The fourth proportional to 262,720.95, 394,136.82 and 85,214.18 is: 127,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,720.95 : 394,136.82 = 85,214.18 : x
  2. Step 2: Convert to fraction form
    262,720.95/394,136.82 = 85,214.18/x
  3. Step 3: Cross multiply
    262,720.95x = 394,136.82 × 85,214.18
  4. Step 4: Simplify right side
    262,720.95x = 33,586,043,953.42
  5. Step 5: Solve for x
    x = 33,586,043,953.42/262,720.95
  6. Step 6: Final answer
    x = 127,839.23

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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.