Home / 185,539.82-256,045.05-100,656.88

Finding the Fourth Proportional to 185,539.82, 256,045.05 and 100,656.88

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Solution

The fourth proportional to 185,539.82, 256,045.05 and 100,656.88 is: 138,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,539.82 : 256,045.05 = 100,656.88 : x
  2. Step 2: Convert to fraction form
    185,539.82/256,045.05 = 100,656.88/x
  3. Step 3: Cross multiply
    185,539.82x = 256,045.05 × 100,656.88
  4. Step 4: Simplify right side
    185,539.82x = 25,772,695,872.44
  5. Step 5: Solve for x
    x = 25,772,695,872.44/185,539.82
  6. Step 6: Final answer
    x = 138,906.55

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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.