Home / 143,944.47-198,589.86-83,481.21

Finding the Fourth Proportional to 143,944.47, 198,589.86 and 83,481.21

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Solution

The fourth proportional to 143,944.47, 198,589.86 and 83,481.21 is: 115,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,944.47 : 198,589.86 = 83,481.21 : x
  2. Step 2: Convert to fraction form
    143,944.47/198,589.86 = 83,481.21/x
  3. Step 3: Cross multiply
    143,944.47x = 198,589.86 × 83,481.21
  4. Step 4: Simplify right side
    143,944.47x = 16,578,521,806.53
  5. Step 5: Solve for x
    x = 16,578,521,806.53/143,944.47
  6. Step 6: Final answer
    x = 115,173.04

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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.