Home / 313,105.72-432,086.04-169,865.74

Finding the Fourth Proportional to 313,105.72, 432,086.04 and 169,865.74

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Solution

The fourth proportional to 313,105.72, 432,086.04 and 169,865.74 is: 234,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,105.72 : 432,086.04 = 169,865.74 : x
  2. Step 2: Convert to fraction form
    313,105.72/432,086.04 = 169,865.74/x
  3. Step 3: Cross multiply
    313,105.72x = 432,086.04 × 169,865.74
  4. Step 4: Simplify right side
    313,105.72x = 73,396,614,928.27
  5. Step 5: Solve for x
    x = 73,396,614,928.27/313,105.72
  6. Step 6: Final answer
    x = 234,414.80

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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.