Home / 198,649.86-274,142.19-108,011.91

Finding the Fourth Proportional to 198,649.86, 274,142.19 and 108,011.91

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Solution

The fourth proportional to 198,649.86, 274,142.19 and 108,011.91 is: 149,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,649.86 : 274,142.19 = 108,011.91 : x
  2. Step 2: Convert to fraction form
    198,649.86/274,142.19 = 108,011.91/x
  3. Step 3: Cross multiply
    198,649.86x = 274,142.19 × 108,011.91
  4. Step 4: Simplify right side
    198,649.86x = 29,610,621,553.48
  5. Step 5: Solve for x
    x = 29,610,621,553.48/198,649.86
  6. Step 6: Final answer
    x = 149,059.36

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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.