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Finding the Fourth Proportional to 162,398.58, 243,630.72 and 67,635.90

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Solution

The fourth proportional to 162,398.58, 243,630.72 and 67,635.90 is: 101,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,398.58 : 243,630.72 = 67,635.90 : x
  2. Step 2: Convert to fraction form
    162,398.58/243,630.72 = 67,635.90/x
  3. Step 3: Cross multiply
    162,398.58x = 243,630.72 × 67,635.90
  4. Step 4: Simplify right side
    162,398.58x = 16,478,183,014.85
  5. Step 5: Solve for x
    x = 16,478,183,014.85/162,398.58
  6. Step 6: Final answer
    x = 101,467.53

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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.