Home / 99,631.94-149,344.12-43,456.97

Finding the Fourth Proportional to 99,631.94, 149,344.12 and 43,456.97

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Solution

The fourth proportional to 99,631.94, 149,344.12 and 43,456.97 is: 65,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,631.94 : 149,344.12 = 43,456.97 : x
  2. Step 2: Convert to fraction form
    99,631.94/149,344.12 = 43,456.97/x
  3. Step 3: Cross multiply
    99,631.94x = 149,344.12 × 43,456.97
  4. Step 4: Simplify right side
    99,631.94x = 6,490,042,845.73
  5. Step 5: Solve for x
    x = 6,490,042,845.73/99,631.94
  6. Step 6: Final answer
    x = 65,140.18

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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.