Home / 198,691.72-274,197.93-108,050.36

Finding the Fourth Proportional to 198,691.72, 274,197.93 and 108,050.36

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Solution

The fourth proportional to 198,691.72, 274,197.93 and 108,050.36 is: 149,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,691.72 : 274,197.93 = 108,050.36 : x
  2. Step 2: Convert to fraction form
    198,691.72/274,197.93 = 108,050.36/x
  3. Step 3: Cross multiply
    198,691.72x = 274,197.93 × 108,050.36
  4. Step 4: Simplify right side
    198,691.72x = 29,627,184,813.94
  5. Step 5: Solve for x
    x = 29,627,184,813.94/198,691.72
  6. Step 6: Final answer
    x = 149,111.32

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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.