Home / 268,986.08-403,544-81,986.24

Finding the Fourth Proportional to 268,986.08, 403,544 and 81,986.24

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Solution

The fourth proportional to 268,986.08, 403,544 and 81,986.24 is: 122,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,986.08 : 403,544 = 81,986.24 : x
  2. Step 2: Convert to fraction form
    268,986.08/403,544 = 81,986.24/x
  3. Step 3: Cross multiply
    268,986.08x = 403,544 × 81,986.24
  4. Step 4: Simplify right side
    268,986.08x = 33,085,055,234.56
  5. Step 5: Solve for x
    x = 33,085,055,234.56/268,986.08
  6. Step 6: Final answer
    x = 122,999.14

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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.