Home / 198,750.68-274,280.45-108,111.48

Finding the Fourth Proportional to 198,750.68, 274,280.45 and 108,111.48

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Solution

The fourth proportional to 198,750.68, 274,280.45 and 108,111.48 is: 149,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,750.68 : 274,280.45 = 108,111.48 : x
  2. Step 2: Convert to fraction form
    198,750.68/274,280.45 = 108,111.48/x
  3. Step 3: Cross multiply
    198,750.68x = 274,280.45 × 108,111.48
  4. Step 4: Simplify right side
    198,750.68x = 29,652,864,844.01
  5. Step 5: Solve for x
    x = 29,652,864,844.01/198,750.68
  6. Step 6: Final answer
    x = 149,196.30

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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.