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Finding the Fourth Proportional to 173,079.78, 238,872 and 100,467.14

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Solution

The fourth proportional to 173,079.78, 238,872 and 100,467.14 is: 138,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,079.78 : 238,872 = 100,467.14 : x
  2. Step 2: Convert to fraction form
    173,079.78/238,872 = 100,467.14/x
  3. Step 3: Cross multiply
    173,079.78x = 238,872 × 100,467.14
  4. Step 4: Simplify right side
    173,079.78x = 23,998,786,666.08
  5. Step 5: Solve for x
    x = 23,998,786,666.08/173,079.78
  6. Step 6: Final answer
    x = 138,657.37

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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.