Home / 198,739.44-274,190.40-112,685.58

Finding the Fourth Proportional to 198,739.44, 274,190.40 and 112,685.58

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Solution

The fourth proportional to 198,739.44, 274,190.40 and 112,685.58 is: 155,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,739.44 : 274,190.40 = 112,685.58 : x
  2. Step 2: Convert to fraction form
    198,739.44/274,190.40 = 112,685.58/x
  3. Step 3: Cross multiply
    198,739.44x = 274,190.40 × 112,685.58
  4. Step 4: Simplify right side
    198,739.44x = 30,897,304,254.43
  5. Step 5: Solve for x
    x = 30,897,304,254.43/198,739.44
  6. Step 6: Final answer
    x = 155,466.39

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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.