Home / 206,434.14-309,576.85-71,461.53

Finding the Fourth Proportional to 206,434.14, 309,576.85 and 71,461.53

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Solution

The fourth proportional to 206,434.14, 309,576.85 and 71,461.53 is: 107,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,434.14 : 309,576.85 = 71,461.53 : x
  2. Step 2: Convert to fraction form
    206,434.14/309,576.85 = 71,461.53/x
  3. Step 3: Cross multiply
    206,434.14x = 309,576.85 × 71,461.53
  4. Step 4: Simplify right side
    206,434.14x = 22,122,835,353.58
  5. Step 5: Solve for x
    x = 22,122,835,353.58/206,434.14
  6. Step 6: Final answer
    x = 107,166.55

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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.