Home / 198,768.45-274,307.78-113,901.92

Finding the Fourth Proportional to 198,768.45, 274,307.78 and 113,901.92

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Solution

The fourth proportional to 198,768.45, 274,307.78 and 113,901.92 is: 157,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,768.45 : 274,307.78 = 113,901.92 : x
  2. Step 2: Convert to fraction form
    198,768.45/274,307.78 = 113,901.92/x
  3. Step 3: Cross multiply
    198,768.45x = 274,307.78 × 113,901.92
  4. Step 4: Simplify right side
    198,768.45x = 31,244,182,812.94
  5. Step 5: Solve for x
    x = 31,244,182,812.94/198,768.45
  6. Step 6: Final answer
    x = 157,188.84

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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.