Home / 197,916-273,141.36-108,509.28

Finding the Fourth Proportional to 197,916, 273,141.36 and 108,509.28

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Solution

The fourth proportional to 197,916, 273,141.36 and 108,509.28 is: 149,752.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,916 : 273,141.36 = 108,509.28 : x
  2. Step 2: Convert to fraction form
    197,916/273,141.36 = 108,509.28/x
  3. Step 3: Cross multiply
    197,916x = 273,141.36 × 108,509.28
  4. Step 4: Simplify right side
    197,916x = 29,638,372,311.82
  5. Step 5: Solve for x
    x = 29,638,372,311.82/197,916
  6. Step 6: Final answer
    x = 149,752.28

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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.