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Finding the Fourth Proportional to 172,251.54, 237,725.82 and 100,655.64

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Solution

The fourth proportional to 172,251.54, 237,725.82 and 100,655.64 is: 138,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,251.54 : 237,725.82 = 100,655.64 : x
  2. Step 2: Convert to fraction form
    172,251.54/237,725.82 = 100,655.64/x
  3. Step 3: Cross multiply
    172,251.54x = 237,725.82 × 100,655.64
  4. Step 4: Simplify right side
    172,251.54x = 23,928,444,556.62
  5. Step 5: Solve for x
    x = 23,928,444,556.62/172,251.54
  6. Step 6: Final answer
    x = 138,915.71

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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.