Home / 215,086.29-322,637.65-80,183.93

Finding the Fourth Proportional to 215,086.29, 322,637.65 and 80,183.93

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Solution

The fourth proportional to 215,086.29, 322,637.65 and 80,183.93 is: 120,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,086.29 : 322,637.65 = 80,183.93 : x
  2. Step 2: Convert to fraction form
    215,086.29/322,637.65 = 80,183.93/x
  3. Step 3: Cross multiply
    215,086.29x = 322,637.65 × 80,183.93
  4. Step 4: Simplify right side
    215,086.29x = 25,870,352,929.32
  5. Step 5: Solve for x
    x = 25,870,352,929.32/215,086.29
  6. Step 6: Final answer
    x = 120,278.95

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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.