Home / 185,540.09-256,045.41-100,657.13

Finding the Fourth Proportional to 185,540.09, 256,045.41 and 100,657.13

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Solution

The fourth proportional to 185,540.09, 256,045.41 and 100,657.13 is: 138,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,540.09 : 256,045.41 = 100,657.13 : x
  2. Step 2: Convert to fraction form
    185,540.09/256,045.41 = 100,657.13/x
  3. Step 3: Cross multiply
    185,540.09x = 256,045.41 × 100,657.13
  4. Step 4: Simplify right side
    185,540.09x = 25,772,794,840.05
  5. Step 5: Solve for x
    x = 25,772,794,840.05/185,540.09
  6. Step 6: Final answer
    x = 138,906.88

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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.