Home / 99,982.14-149,935.54-40,786.12

Finding the Fourth Proportional to 99,982.14, 149,935.54 and 40,786.12

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Solution

The fourth proportional to 99,982.14, 149,935.54 and 40,786.12 is: 61,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,982.14 : 149,935.54 = 40,786.12 : x
  2. Step 2: Convert to fraction form
    99,982.14/149,935.54 = 40,786.12/x
  3. Step 3: Cross multiply
    99,982.14x = 149,935.54 × 40,786.12
  4. Step 4: Simplify right side
    99,982.14x = 6,115,288,926.70
  5. Step 5: Solve for x
    x = 6,115,288,926.70/99,982.14
  6. Step 6: Final answer
    x = 61,163.81

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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.