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Finding the Fourth Proportional to 162,414.25, 243,662.87 and 67,612.91

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Solution

The fourth proportional to 162,414.25, 243,662.87 and 67,612.91 is: 101,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,414.25 : 243,662.87 = 67,612.91 : x
  2. Step 2: Convert to fraction form
    162,414.25/243,662.87 = 67,612.91/x
  3. Step 3: Cross multiply
    162,414.25x = 243,662.87 × 67,612.91
  4. Step 4: Simplify right side
    162,414.25x = 16,474,754,650.37
  5. Step 5: Solve for x
    x = 16,474,754,650.37/162,414.25
  6. Step 6: Final answer
    x = 101,436.63

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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.