Home / 215,073.43-322,593.94-86,997.85

Finding the Fourth Proportional to 215,073.43, 322,593.94 and 86,997.85

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Solution

The fourth proportional to 215,073.43, 322,593.94 and 86,997.85 is: 130,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,073.43 : 322,593.94 = 86,997.85 : x
  2. Step 2: Convert to fraction form
    215,073.43/322,593.94 = 86,997.85/x
  3. Step 3: Cross multiply
    215,073.43x = 322,593.94 × 86,997.85
  4. Step 4: Simplify right side
    215,073.43x = 28,064,979,203.03
  5. Step 5: Solve for x
    x = 28,064,979,203.03/215,073.43
  6. Step 6: Final answer
    x = 130,490.22

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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.