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Finding the Fourth Proportional to 179,080.60, 247,111.82 and 103,615

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Solution

The fourth proportional to 179,080.60, 247,111.82 and 103,615 is: 142,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,080.60 : 247,111.82 = 103,615 : x
  2. Step 2: Convert to fraction form
    179,080.60/247,111.82 = 103,615/x
  3. Step 3: Cross multiply
    179,080.60x = 247,111.82 × 103,615
  4. Step 4: Simplify right side
    179,080.60x = 25,604,491,229.30
  5. Step 5: Solve for x
    x = 25,604,491,229.30/179,080.60
  6. Step 6: Final answer
    x = 142,977.47

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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.