Home / 198,824.50-274,377.81-109,400.50

Finding the Fourth Proportional to 198,824.50, 274,377.81 and 109,400.50

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Solution

The fourth proportional to 198,824.50, 274,377.81 and 109,400.50 is: 150,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,824.50 : 274,377.81 = 109,400.50 : x
  2. Step 2: Convert to fraction form
    198,824.50/274,377.81 = 109,400.50/x
  3. Step 3: Cross multiply
    198,824.50x = 274,377.81 × 109,400.50
  4. Step 4: Simplify right side
    198,824.50x = 30,017,069,602.91
  5. Step 5: Solve for x
    x = 30,017,069,602.91/198,824.50
  6. Step 6: Final answer
    x = 150,972.69

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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.