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Finding the Fourth Proportional to 132,355.33, 182,676.89 and 78,629.97

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Solution

The fourth proportional to 132,355.33, 182,676.89 and 78,629.97 is: 108,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,355.33 : 182,676.89 = 78,629.97 : x
  2. Step 2: Convert to fraction form
    132,355.33/182,676.89 = 78,629.97/x
  3. Step 3: Cross multiply
    132,355.33x = 182,676.89 × 78,629.97
  4. Step 4: Simplify right side
    132,355.33x = 14,363,878,380.39
  5. Step 5: Solve for x
    x = 14,363,878,380.39/132,355.33
  6. Step 6: Final answer
    x = 108,525.12

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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.