Home / 198,654.40-274,097.28-123,166.72

Finding the Fourth Proportional to 198,654.40, 274,097.28 and 123,166.72

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Solution

The fourth proportional to 198,654.40, 274,097.28 and 123,166.72 is: 169,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,654.40 : 274,097.28 = 123,166.72 : x
  2. Step 2: Convert to fraction form
    198,654.40/274,097.28 = 123,166.72/x
  3. Step 3: Cross multiply
    198,654.40x = 274,097.28 × 123,166.72
  4. Step 4: Simplify right side
    198,654.40x = 33,759,662,938.52
  5. Step 5: Solve for x
    x = 33,759,662,938.52/198,654.40
  6. Step 6: Final answer
    x = 169,941.68

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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.