Home / 198,858.84-274,363.40-112,803.64

Finding the Fourth Proportional to 198,858.84, 274,363.40 and 112,803.64

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Solution

The fourth proportional to 198,858.84, 274,363.40 and 112,803.64 is: 155,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,858.84 : 274,363.40 = 112,803.64 : x
  2. Step 2: Convert to fraction form
    198,858.84/274,363.40 = 112,803.64/x
  3. Step 3: Cross multiply
    198,858.84x = 274,363.40 × 112,803.64
  4. Step 4: Simplify right side
    198,858.84x = 30,949,190,202.78
  5. Step 5: Solve for x
    x = 30,949,190,202.78/198,858.84
  6. Step 6: Final answer
    x = 155,633.97

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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.