Home / 132,375.87-182,705.29-78,650.56

Finding the Fourth Proportional to 132,375.87, 182,705.29 and 78,650.56

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Solution

The fourth proportional to 132,375.87, 182,705.29 and 78,650.56 is: 108,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,375.87 : 182,705.29 = 78,650.56 : x
  2. Step 2: Convert to fraction form
    132,375.87/182,705.29 = 78,650.56/x
  3. Step 3: Cross multiply
    132,375.87x = 182,705.29 × 78,650.56
  4. Step 4: Simplify right side
    132,375.87x = 14,369,873,405.22
  5. Step 5: Solve for x
    x = 14,369,873,405.22/132,375.87
  6. Step 6: Final answer
    x = 108,553.57

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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.