Home / 206,256.22-309,339.78-73,140.82

Finding the Fourth Proportional to 206,256.22, 309,339.78 and 73,140.82

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Solution

The fourth proportional to 206,256.22, 309,339.78 and 73,140.82 is: 109,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,256.22 : 309,339.78 = 73,140.82 : x
  2. Step 2: Convert to fraction form
    206,256.22/309,339.78 = 73,140.82/x
  3. Step 3: Cross multiply
    206,256.22x = 309,339.78 × 73,140.82
  4. Step 4: Simplify right side
    206,256.22x = 22,625,365,167.82
  5. Step 5: Solve for x
    x = 22,625,365,167.82/206,256.22
  6. Step 6: Final answer
    x = 109,695.43

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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.