Home / 181,288.20-250,217.73-100,743.42

Finding the Fourth Proportional to 181,288.20, 250,217.73 and 100,743.42

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Solution

The fourth proportional to 181,288.20, 250,217.73 and 100,743.42 is: 139,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,288.20 : 250,217.73 = 100,743.42 : x
  2. Step 2: Convert to fraction form
    181,288.20/250,217.73 = 100,743.42/x
  3. Step 3: Cross multiply
    181,288.20x = 250,217.73 × 100,743.42
  4. Step 4: Simplify right side
    181,288.20x = 25,207,789,864.84
  5. Step 5: Solve for x
    x = 25,207,789,864.84/181,288.20
  6. Step 6: Final answer
    x = 139,048.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.