Home / 143,747.06-198,371.25-80,087.13

Finding the Fourth Proportional to 143,747.06, 198,371.25 and 80,087.13

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Solution

The fourth proportional to 143,747.06, 198,371.25 and 80,087.13 is: 110,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,747.06 : 198,371.25 = 80,087.13 : x
  2. Step 2: Convert to fraction form
    143,747.06/198,371.25 = 80,087.13/x
  3. Step 3: Cross multiply
    143,747.06x = 198,371.25 × 80,087.13
  4. Step 4: Simplify right side
    143,747.06x = 15,886,984,087.01
  5. Step 5: Solve for x
    x = 15,886,984,087.01/143,747.06
  6. Step 6: Final answer
    x = 110,520.41

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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.