Home / 185,799.88-256,404.90-100,917.64

Finding the Fourth Proportional to 185,799.88, 256,404.90 and 100,917.64

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Solution

The fourth proportional to 185,799.88, 256,404.90 and 100,917.64 is: 139,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,799.88 : 256,404.90 = 100,917.64 : x
  2. Step 2: Convert to fraction form
    185,799.88/256,404.90 = 100,917.64/x
  3. Step 3: Cross multiply
    185,799.88x = 256,404.90 × 100,917.64
  4. Step 4: Simplify right side
    185,799.88x = 25,875,777,392.44
  5. Step 5: Solve for x
    x = 25,875,777,392.44/185,799.88
  6. Step 6: Final answer
    x = 139,266.92

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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.