Home / 198,933.59-274,632.59-153,513.29

Finding the Fourth Proportional to 198,933.59, 274,632.59 and 153,513.29

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Solution

The fourth proportional to 198,933.59, 274,632.59 and 153,513.29 is: 211,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,933.59 : 274,632.59 = 153,513.29 : x
  2. Step 2: Convert to fraction form
    198,933.59/274,632.59 = 153,513.29/x
  3. Step 3: Cross multiply
    198,933.59x = 274,632.59 × 153,513.29
  4. Step 4: Simplify right side
    198,933.59x = 42,159,752,432.12
  5. Step 5: Solve for x
    x = 42,159,752,432.12/198,933.59
  6. Step 6: Final answer
    x = 211,928.78

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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.