Home / 99,021.84-148,359.96-82,488.12

Finding the Fourth Proportional to 99,021.84, 148,359.96 and 82,488.12

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Solution

The fourth proportional to 99,021.84, 148,359.96 and 82,488.12 is: 123,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,021.84 : 148,359.96 = 82,488.12 : x
  2. Step 2: Convert to fraction form
    99,021.84/148,359.96 = 82,488.12/x
  3. Step 3: Cross multiply
    99,021.84x = 148,359.96 × 82,488.12
  4. Step 4: Simplify right side
    99,021.84x = 12,237,934,183.68
  5. Step 5: Solve for x
    x = 12,237,934,183.68/99,021.84
  6. Step 6: Final answer
    x = 123,588.23

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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.