Home / 215,260.86-322,919.51-71,118.80

Finding the Fourth Proportional to 215,260.86, 322,919.51 and 71,118.80

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Solution

The fourth proportional to 215,260.86, 322,919.51 and 71,118.80 is: 106,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,260.86 : 322,919.51 = 71,118.80 : x
  2. Step 2: Convert to fraction form
    215,260.86/322,919.51 = 71,118.80/x
  3. Step 3: Cross multiply
    215,260.86x = 322,919.51 × 71,118.80
  4. Step 4: Simplify right side
    215,260.86x = 22,965,648,047.79
  5. Step 5: Solve for x
    x = 22,965,648,047.79/215,260.86
  6. Step 6: Final answer
    x = 106,687.52

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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.