Home / 109,227.78-162,984.96-102,540.42

Finding the Fourth Proportional to 109,227.78, 162,984.96 and 102,540.42

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Solution

The fourth proportional to 109,227.78, 162,984.96 and 102,540.42 is: 153,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,227.78 : 162,984.96 = 102,540.42 : x
  2. Step 2: Convert to fraction form
    109,227.78/162,984.96 = 102,540.42/x
  3. Step 3: Cross multiply
    109,227.78x = 162,984.96 × 102,540.42
  4. Step 4: Simplify right side
    109,227.78x = 16,712,546,252.08
  5. Step 5: Solve for x
    x = 16,712,546,252.08/109,227.78
  6. Step 6: Final answer
    x = 153,006.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.