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Finding the Fourth Proportional to 112,660, 168,990 and 29,554

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Solution

The fourth proportional to 112,660, 168,990 and 29,554 is: 44,331

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,660 : 168,990 = 29,554 : x
  2. Step 2: Convert to fraction form
    112,660/168,990 = 29,554/x
  3. Step 3: Cross multiply
    112,660x = 168,990 × 29,554
  4. Step 4: Simplify right side
    112,660x = 4,994,330,460
  5. Step 5: Solve for x
    x = 4,994,330,460/112,660
  6. Step 6: Final answer
    x = 44,331

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.