Home / 143,947.13-198,647.03-80,284.97

Finding the Fourth Proportional to 143,947.13, 198,647.03 and 80,284.97

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Solution

The fourth proportional to 143,947.13, 198,647.03 and 80,284.97 is: 110,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,947.13 : 198,647.03 = 80,284.97 : x
  2. Step 2: Convert to fraction form
    143,947.13/198,647.03 = 80,284.97/x
  3. Step 3: Cross multiply
    143,947.13x = 198,647.03 × 80,284.97
  4. Step 4: Simplify right side
    143,947.13x = 15,948,371,541.47
  5. Step 5: Solve for x
    x = 15,948,371,541.47/143,947.13
  6. Step 6: Final answer
    x = 110,793.26

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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.