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Finding the Fourth Proportional to 104,118, 156,181.32 and 30,246

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Solution

The fourth proportional to 104,118, 156,181.32 and 30,246 is: 45,370.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,118 : 156,181.32 = 30,246 : x
  2. Step 2: Convert to fraction form
    104,118/156,181.32 = 30,246/x
  3. Step 3: Cross multiply
    104,118x = 156,181.32 × 30,246
  4. Step 4: Simplify right side
    104,118x = 4,723,860,204.72
  5. Step 5: Solve for x
    x = 4,723,860,204.72/104,118
  6. Step 6: Final answer
    x = 45,370.25

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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.