Home / 198,947.50-274,547.64-109,523.50

Finding the Fourth Proportional to 198,947.50, 274,547.64 and 109,523.50

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Solution

The fourth proportional to 198,947.50, 274,547.64 and 109,523.50 is: 151,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,947.50 : 274,547.64 = 109,523.50 : x
  2. Step 2: Convert to fraction form
    198,947.50/274,547.64 = 109,523.50/x
  3. Step 3: Cross multiply
    198,947.50x = 274,547.64 × 109,523.50
  4. Step 4: Simplify right side
    198,947.50x = 30,069,418,449.54
  5. Step 5: Solve for x
    x = 30,069,418,449.54/198,947.50
  6. Step 6: Final answer
    x = 151,142.48

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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.