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Finding the Fourth Proportional to 103,144.34, 154,860.24 and 53,260.44

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Solution

The fourth proportional to 103,144.34, 154,860.24 and 53,260.44 is: 79,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,144.34 : 154,860.24 = 53,260.44 : x
  2. Step 2: Convert to fraction form
    103,144.34/154,860.24 = 53,260.44/x
  3. Step 3: Cross multiply
    103,144.34x = 154,860.24 × 53,260.44
  4. Step 4: Simplify right side
    103,144.34x = 8,247,924,520.91
  5. Step 5: Solve for x
    x = 8,247,924,520.91/103,144.34
  6. Step 6: Final answer
    x = 79,964.88

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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.