Home / 99,974.11-149,930.89-52,563.65

Finding the Fourth Proportional to 99,974.11, 149,930.89 and 52,563.65

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Solution

The fourth proportional to 99,974.11, 149,930.89 and 52,563.65 is: 78,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,974.11 : 149,930.89 = 52,563.65 : x
  2. Step 2: Convert to fraction form
    99,974.11/149,930.89 = 52,563.65/x
  3. Step 3: Cross multiply
    99,974.11x = 149,930.89 × 52,563.65
  4. Step 4: Simplify right side
    99,974.11x = 7,880,915,069.57
  5. Step 5: Solve for x
    x = 7,880,915,069.57/99,974.11
  6. Step 6: Final answer
    x = 78,829.56

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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.