Home / 198,907.47-274,487.94-108,261.18

Finding the Fourth Proportional to 198,907.47, 274,487.94 and 108,261.18

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Solution

The fourth proportional to 198,907.47, 274,487.94 and 108,261.18 is: 149,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,907.47 : 274,487.94 = 108,261.18 : x
  2. Step 2: Convert to fraction form
    198,907.47/274,487.94 = 108,261.18/x
  3. Step 3: Cross multiply
    198,907.47x = 274,487.94 × 108,261.18
  4. Step 4: Simplify right side
    198,907.47x = 29,716,388,280.17
  5. Step 5: Solve for x
    x = 29,716,388,280.17/198,907.47
  6. Step 6: Final answer
    x = 149,398.05

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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.