Home / 143,884.03-215,641.34-68,891.80

Finding the Fourth Proportional to 143,884.03, 215,641.34 and 68,891.80

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Solution

The fourth proportional to 143,884.03, 215,641.34 and 68,891.80 is: 103,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,884.03 : 215,641.34 = 68,891.80 : x
  2. Step 2: Convert to fraction form
    143,884.03/215,641.34 = 68,891.80/x
  3. Step 3: Cross multiply
    143,884.03x = 215,641.34 × 68,891.80
  4. Step 4: Simplify right side
    143,884.03x = 14,855,919,183.45
  5. Step 5: Solve for x
    x = 14,855,919,183.45/143,884.03
  6. Step 6: Final answer
    x = 103,249.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.