Home / 198,857.46-274,426.93-109,431.54

Finding the Fourth Proportional to 198,857.46, 274,426.93 and 109,431.54

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Solution

The fourth proportional to 198,857.46, 274,426.93 and 109,431.54 is: 151,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,857.46 : 274,426.93 = 109,431.54 : x
  2. Step 2: Convert to fraction form
    198,857.46/274,426.93 = 109,431.54/x
  3. Step 3: Cross multiply
    198,857.46x = 274,426.93 × 109,431.54
  4. Step 4: Simplify right side
    198,857.46x = 30,030,961,567.37
  5. Step 5: Solve for x
    x = 30,030,961,567.37/198,857.46
  6. Step 6: Final answer
    x = 151,017.53

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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.