Home / 205,131.27-307,834.36-72,011.92

Finding the Fourth Proportional to 205,131.27, 307,834.36 and 72,011.92

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Solution

The fourth proportional to 205,131.27, 307,834.36 and 72,011.92 is: 108,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,131.27 : 307,834.36 = 72,011.92 : x
  2. Step 2: Convert to fraction form
    205,131.27/307,834.36 = 72,011.92/x
  3. Step 3: Cross multiply
    205,131.27x = 307,834.36 × 72,011.92
  4. Step 4: Simplify right side
    205,131.27x = 22,167,743,305.57
  5. Step 5: Solve for x
    x = 22,167,743,305.57/205,131.27
  6. Step 6: Final answer
    x = 108,066.13

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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.