Home / 185,301.44-255,716.88-100,418.56

Finding the Fourth Proportional to 185,301.44, 255,716.88 and 100,418.56

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Solution

The fourth proportional to 185,301.44, 255,716.88 and 100,418.56 is: 138,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,301.44 : 255,716.88 = 100,418.56 : x
  2. Step 2: Convert to fraction form
    185,301.44/255,716.88 = 100,418.56/x
  3. Step 3: Cross multiply
    185,301.44x = 255,716.88 × 100,418.56
  4. Step 4: Simplify right side
    185,301.44x = 25,678,720,857.29
  5. Step 5: Solve for x
    x = 25,678,720,857.29/185,301.44
  6. Step 6: Final answer
    x = 138,578.10

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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.