Home / 198,774.86-274,301.39-108,130.94

Finding the Fourth Proportional to 198,774.86, 274,301.39 and 108,130.94

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Solution

The fourth proportional to 198,774.86, 274,301.39 and 108,130.94 is: 149,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,774.86 : 274,301.39 = 108,130.94 : x
  2. Step 2: Convert to fraction form
    198,774.86/274,301.39 = 108,130.94/x
  3. Step 3: Cross multiply
    198,774.86x = 274,301.39 × 108,130.94
  4. Step 4: Simplify right side
    198,774.86x = 29,660,467,144.01
  5. Step 5: Solve for x
    x = 29,660,467,144.01/198,774.86
  6. Step 6: Final answer
    x = 149,216.39

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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.