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Finding the Fourth Proportional to 132,573.96, 182,949.84 and 72,143.04

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Solution

The fourth proportional to 132,573.96, 182,949.84 and 72,143.04 is: 99,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,573.96 : 182,949.84 = 72,143.04 : x
  2. Step 2: Convert to fraction form
    132,573.96/182,949.84 = 72,143.04/x
  3. Step 3: Cross multiply
    132,573.96x = 182,949.84 × 72,143.04
  4. Step 4: Simplify right side
    132,573.96x = 13,198,557,625.11
  5. Step 5: Solve for x
    x = 13,198,557,625.11/132,573.96
  6. Step 6: Final answer
    x = 99,556.18

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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.