Home / 206,690.27-285,263.78-126,164.66

Finding the Fourth Proportional to 206,690.27, 285,263.78 and 126,164.66

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Solution

The fourth proportional to 206,690.27, 285,263.78 and 126,164.66 is: 174,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,690.27 : 285,263.78 = 126,164.66 : x
  2. Step 2: Convert to fraction form
    206,690.27/285,263.78 = 126,164.66/x
  3. Step 3: Cross multiply
    206,690.27x = 285,263.78 × 126,164.66
  4. Step 4: Simplify right side
    206,690.27x = 35,990,205,756.87
  5. Step 5: Solve for x
    x = 35,990,205,756.87/206,690.27
  6. Step 6: Final answer
    x = 174,126.27

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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.