Home / 143,252.10-214,921.35-76,724.10

Finding the Fourth Proportional to 143,252.10, 214,921.35 and 76,724.10

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Solution

The fourth proportional to 143,252.10, 214,921.35 and 76,724.10 is: 115,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,252.10 : 214,921.35 = 76,724.10 : x
  2. Step 2: Convert to fraction form
    143,252.10/214,921.35 = 76,724.10/x
  3. Step 3: Cross multiply
    143,252.10x = 214,921.35 × 76,724.10
  4. Step 4: Simplify right side
    143,252.10x = 16,489,647,149.54
  5. Step 5: Solve for x
    x = 16,489,647,149.54/143,252.10
  6. Step 6: Final answer
    x = 115,109.29

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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.