Home / 171,144.19-256,842.41-81,187.18

Finding the Fourth Proportional to 171,144.19, 256,842.41 and 81,187.18

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Solution

The fourth proportional to 171,144.19, 256,842.41 and 81,187.18 is: 121,840.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,144.19 : 256,842.41 = 81,187.18 : x
  2. Step 2: Convert to fraction form
    171,144.19/256,842.41 = 81,187.18/x
  3. Step 3: Cross multiply
    171,144.19x = 256,842.41 × 81,187.18
  4. Step 4: Simplify right side
    171,144.19x = 20,852,311,496.32
  5. Step 5: Solve for x
    x = 20,852,311,496.32/171,144.19
  6. Step 6: Final answer
    x = 121,840.61

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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.