Home / 198,743.36-274,265.64-113,860.76

Finding the Fourth Proportional to 198,743.36, 274,265.64 and 113,860.76

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Solution

The fourth proportional to 198,743.36, 274,265.64 and 113,860.76 is: 157,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,743.36 : 274,265.64 = 113,860.76 : x
  2. Step 2: Convert to fraction form
    198,743.36/274,265.64 = 113,860.76/x
  3. Step 3: Cross multiply
    198,743.36x = 274,265.64 × 113,860.76
  4. Step 4: Simplify right side
    198,743.36x = 31,228,094,212.29
  5. Step 5: Solve for x
    x = 31,228,094,212.29/198,743.36
  6. Step 6: Final answer
    x = 157,127.74

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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.