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Finding the Fourth Proportional to 99,910.64, 149,736.77 and 74,753.30

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Solution

The fourth proportional to 99,910.64, 149,736.77 and 74,753.30 is: 112,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,910.64 : 149,736.77 = 74,753.30 : x
  2. Step 2: Convert to fraction form
    99,910.64/149,736.77 = 74,753.30/x
  3. Step 3: Cross multiply
    99,910.64x = 149,736.77 × 74,753.30
  4. Step 4: Simplify right side
    99,910.64x = 11,193,317,688.84
  5. Step 5: Solve for x
    x = 11,193,317,688.84/99,910.64
  6. Step 6: Final answer
    x = 112,033.29

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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.