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Finding the Fourth Proportional to 104,121, 156,185.82 and 30,249

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Solution

The fourth proportional to 104,121, 156,185.82 and 30,249 is: 45,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,121 : 156,185.82 = 30,249 : x
  2. Step 2: Convert to fraction form
    104,121/156,185.82 = 30,249/x
  3. Step 3: Cross multiply
    104,121x = 156,185.82 × 30,249
  4. Step 4: Simplify right side
    104,121x = 4,724,464,869.18
  5. Step 5: Solve for x
    x = 4,724,464,869.18/104,121
  6. Step 6: Final answer
    x = 45,374.76

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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.