Home / 99,238.57-136,949.67-53,917.38

Finding the Fourth Proportional to 99,238.57, 136,949.67 and 53,917.38

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Solution

The fourth proportional to 99,238.57, 136,949.67 and 53,917.38 is: 74,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,238.57 : 136,949.67 = 53,917.38 : x
  2. Step 2: Convert to fraction form
    99,238.57/136,949.67 = 53,917.38/x
  3. Step 3: Cross multiply
    99,238.57x = 136,949.67 × 53,917.38
  4. Step 4: Simplify right side
    99,238.57x = 7,383,967,398.26
  5. Step 5: Solve for x
    x = 7,383,967,398.26/99,238.57
  6. Step 6: Final answer
    x = 74,406.23

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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.