Home / 99,216.38-136,918.92-53,895.06

Finding the Fourth Proportional to 99,216.38, 136,918.92 and 53,895.06

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Solution

The fourth proportional to 99,216.38, 136,918.92 and 53,895.06 is: 74,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,216.38 : 136,918.92 = 53,895.06 : x
  2. Step 2: Convert to fraction form
    99,216.38/136,918.92 = 53,895.06/x
  3. Step 3: Cross multiply
    99,216.38x = 136,918.92 × 53,895.06
  4. Step 4: Simplify right side
    99,216.38x = 7,379,253,408.54
  5. Step 5: Solve for x
    x = 7,379,253,408.54/99,216.38
  6. Step 6: Final answer
    x = 74,375.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.