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Finding the Fourth Proportional to 198,773.86, 274,300.01 and 108,129.94

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Solution

The fourth proportional to 198,773.86, 274,300.01 and 108,129.94 is: 149,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,773.86 : 274,300.01 = 108,129.94 : x
  2. Step 2: Convert to fraction form
    198,773.86/274,300.01 = 108,129.94/x
  3. Step 3: Cross multiply
    198,773.86x = 274,300.01 × 108,129.94
  4. Step 4: Simplify right side
    198,773.86x = 29,660,043,623.30
  5. Step 5: Solve for x
    x = 29,660,043,623.30/198,773.86
  6. Step 6: Final answer
    x = 149,215.01

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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.