Home / 185,728.12-256,297.62-100,843.24

Finding the Fourth Proportional to 185,728.12, 256,297.62 and 100,843.24

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Solution

The fourth proportional to 185,728.12, 256,297.62 and 100,843.24 is: 139,159.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,728.12 : 256,297.62 = 100,843.24 : x
  2. Step 2: Convert to fraction form
    185,728.12/256,297.62 = 100,843.24/x
  3. Step 3: Cross multiply
    185,728.12x = 256,297.62 × 100,843.24
  4. Step 4: Simplify right side
    185,728.12x = 25,845,882,405.09
  5. Step 5: Solve for x
    x = 25,845,882,405.09/185,728.12
  6. Step 6: Final answer
    x = 139,159.77

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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.