Home / 143,743.56-198,366.42-80,083.63

Finding the Fourth Proportional to 143,743.56, 198,366.42 and 80,083.63

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Solution

The fourth proportional to 143,743.56, 198,366.42 and 80,083.63 is: 110,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,743.56 : 198,366.42 = 80,083.63 : x
  2. Step 2: Convert to fraction form
    143,743.56/198,366.42 = 80,083.63/x
  3. Step 3: Cross multiply
    143,743.56x = 198,366.42 × 80,083.63
  4. Step 4: Simplify right side
    143,743.56x = 15,885,902,983.70
  5. Step 5: Solve for x
    x = 15,885,902,983.70/143,743.56
  6. Step 6: Final answer
    x = 110,515.58

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1.5x scale

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.