Home / 198,913.40-274,506.41-122,476.59

Finding the Fourth Proportional to 198,913.40, 274,506.41 and 122,476.59

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Solution

The fourth proportional to 198,913.40, 274,506.41 and 122,476.59 is: 169,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,913.40 : 274,506.41 = 122,476.59 : x
  2. Step 2: Convert to fraction form
    198,913.40/274,506.41 = 122,476.59/x
  3. Step 3: Cross multiply
    198,913.40x = 274,506.41 × 122,476.59
  4. Step 4: Simplify right side
    198,913.40x = 33,620,608,417.56
  5. Step 5: Solve for x
    x = 33,620,608,417.56/198,913.40
  6. Step 6: Final answer
    x = 169,021.34

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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.