Home / 143,947.53-198,687.13-83,537.63

Finding the Fourth Proportional to 143,947.53, 198,687.13 and 83,537.63

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Solution

The fourth proportional to 143,947.53, 198,687.13 and 83,537.63 is: 115,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,947.53 : 198,687.13 = 83,537.63 : x
  2. Step 2: Convert to fraction form
    143,947.53/198,687.13 = 83,537.63/x
  3. Step 3: Cross multiply
    143,947.53x = 198,687.13 × 83,537.63
  4. Step 4: Simplify right side
    143,947.53x = 16,597,851,494.50
  5. Step 5: Solve for x
    x = 16,597,851,494.50/143,947.53
  6. Step 6: Final answer
    x = 115,304.87

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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.