Home / 100,166.25-138,229.44-54,844.24

Finding the Fourth Proportional to 100,166.25, 138,229.44 and 54,844.24

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Solution

The fourth proportional to 100,166.25, 138,229.44 and 54,844.24 is: 75,685.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,166.25 : 138,229.44 = 54,844.24 : x
  2. Step 2: Convert to fraction form
    100,166.25/138,229.44 = 54,844.24/x
  3. Step 3: Cross multiply
    100,166.25x = 138,229.44 × 54,844.24
  4. Step 4: Simplify right side
    100,166.25x = 7,581,088,582.43
  5. Step 5: Solve for x
    x = 7,581,088,582.43/100,166.25
  6. Step 6: Final answer
    x = 75,685.06

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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.