Home / 130,378.60-179,916.24-80,067.88

Finding the Fourth Proportional to 130,378.60, 179,916.24 and 80,067.88

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Solution

The fourth proportional to 130,378.60, 179,916.24 and 80,067.88 is: 110,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,378.60 : 179,916.24 = 80,067.88 : x
  2. Step 2: Convert to fraction form
    130,378.60/179,916.24 = 80,067.88/x
  3. Step 3: Cross multiply
    130,378.60x = 179,916.24 × 80,067.88
  4. Step 4: Simplify right side
    130,378.60x = 14,405,511,764.84
  5. Step 5: Solve for x
    x = 14,405,511,764.84/130,378.60
  6. Step 6: Final answer
    x = 110,489.85

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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.