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Finding the Fourth Proportional to 179,859, 248,205.42 and 100,371

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Solution

The fourth proportional to 179,859, 248,205.42 and 100,371 is: 138,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,859 : 248,205.42 = 100,371 : x
  2. Step 2: Convert to fraction form
    179,859/248,205.42 = 100,371/x
  3. Step 3: Cross multiply
    179,859x = 248,205.42 × 100,371
  4. Step 4: Simplify right side
    179,859x = 24,912,626,210.82
  5. Step 5: Solve for x
    x = 24,912,626,210.82/179,859
  6. Step 6: Final answer
    x = 138,511.98

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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.