Home / 140,321.43-210,456.83-40,457.09

Finding the Fourth Proportional to 140,321.43, 210,456.83 and 40,457.09

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Solution

The fourth proportional to 140,321.43, 210,456.83 and 40,457.09 is: 60,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,321.43 : 210,456.83 = 40,457.09 : x
  2. Step 2: Convert to fraction form
    140,321.43/210,456.83 = 40,457.09/x
  3. Step 3: Cross multiply
    140,321.43x = 210,456.83 × 40,457.09
  4. Step 4: Simplify right side
    140,321.43x = 8,514,469,657.86
  5. Step 5: Solve for x
    x = 8,514,469,657.86/140,321.43
  6. Step 6: Final answer
    x = 60,678.33

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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.