Home / 262,120.22-393,179.66-72,579.95

Finding the Fourth Proportional to 262,120.22, 393,179.66 and 72,579.95

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Solution

The fourth proportional to 262,120.22, 393,179.66 and 72,579.95 is: 108,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,120.22 : 393,179.66 = 72,579.95 : x
  2. Step 2: Convert to fraction form
    262,120.22/393,179.66 = 72,579.95/x
  3. Step 3: Cross multiply
    262,120.22x = 393,179.66 × 72,579.95
  4. Step 4: Simplify right side
    262,120.22x = 28,536,960,063.82
  5. Step 5: Solve for x
    x = 28,536,960,063.82/262,120.22
  6. Step 6: Final answer
    x = 108,869.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.