Home / 100,164.25-138,226.68-54,842.24

Finding the Fourth Proportional to 100,164.25, 138,226.68 and 54,842.24

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Solution

The fourth proportional to 100,164.25, 138,226.68 and 54,842.24 is: 75,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,164.25 : 138,226.68 = 54,842.24 : x
  2. Step 2: Convert to fraction form
    100,164.25/138,226.68 = 54,842.24/x
  3. Step 3: Cross multiply
    100,164.25x = 138,226.68 × 54,842.24
  4. Step 4: Simplify right side
    100,164.25x = 7,580,660,758.96
  5. Step 5: Solve for x
    x = 7,580,660,758.96/100,164.25
  6. Step 6: Final answer
    x = 75,682.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.