Home / 198,865.65-274,434.63-109,441.65

Finding the Fourth Proportional to 198,865.65, 274,434.63 and 109,441.65

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Solution

The fourth proportional to 198,865.65, 274,434.63 and 109,441.65 is: 151,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,865.65 : 274,434.63 = 109,441.65 : x
  2. Step 2: Convert to fraction form
    198,865.65/274,434.63 = 109,441.65/x
  3. Step 3: Cross multiply
    198,865.65x = 274,434.63 × 109,441.65
  4. Step 4: Simplify right side
    198,865.65x = 30,034,578,724.34
  5. Step 5: Solve for x
    x = 30,034,578,724.34/198,865.65
  6. Step 6: Final answer
    x = 151,029.50

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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.