Home / 185,414.52-255,871.80-100,531.44

Finding the Fourth Proportional to 185,414.52, 255,871.80 and 100,531.44

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Solution

The fourth proportional to 185,414.52, 255,871.80 and 100,531.44 is: 138,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,414.52 : 255,871.80 = 100,531.44 : x
  2. Step 2: Convert to fraction form
    185,414.52/255,871.80 = 100,531.44/x
  3. Step 3: Cross multiply
    185,414.52x = 255,871.80 × 100,531.44
  4. Step 4: Simplify right side
    185,414.52x = 25,723,160,509.39
  5. Step 5: Solve for x
    x = 25,723,160,509.39/185,414.52
  6. Step 6: Final answer
    x = 138,733.26

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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.