Home / 180,728.22-271,185.26-86,065.74

Finding the Fourth Proportional to 180,728.22, 271,185.26 and 86,065.74

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Solution

The fourth proportional to 180,728.22, 271,185.26 and 86,065.74 is: 129,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,728.22 : 271,185.26 = 86,065.74 : x
  2. Step 2: Convert to fraction form
    180,728.22/271,185.26 = 86,065.74/x
  3. Step 3: Cross multiply
    180,728.22x = 271,185.26 × 86,065.74
  4. Step 4: Simplify right side
    180,728.22x = 23,339,760,078.99
  5. Step 5: Solve for x
    x = 23,339,760,078.99/180,728.22
  6. Step 6: Final answer
    x = 129,142.86

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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.