Home / 198,403.25-273,764.50-121,897.74

Finding the Fourth Proportional to 198,403.25, 273,764.50 and 121,897.74

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Solution

The fourth proportional to 198,403.25, 273,764.50 and 121,897.74 is: 168,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,403.25 : 273,764.50 = 121,897.74 : x
  2. Step 2: Convert to fraction form
    198,403.25/273,764.50 = 121,897.74/x
  3. Step 3: Cross multiply
    198,403.25x = 273,764.50 × 121,897.74
  4. Step 4: Simplify right side
    198,403.25x = 33,371,273,537.49
  5. Step 5: Solve for x
    x = 33,371,273,537.49/198,403.25
  6. Step 6: Final answer
    x = 168,199.23

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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.