Home / 211,645.80-317,462.22-71,392.68

Finding the Fourth Proportional to 211,645.80, 317,462.22 and 71,392.68

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Solution

The fourth proportional to 211,645.80, 317,462.22 and 71,392.68 is: 107,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,645.80 : 317,462.22 = 71,392.68 : x
  2. Step 2: Convert to fraction form
    211,645.80/317,462.22 = 71,392.68/x
  3. Step 3: Cross multiply
    211,645.80x = 317,462.22 × 71,392.68
  4. Step 4: Simplify right side
    211,645.80x = 22,664,478,684.55
  5. Step 5: Solve for x
    x = 22,664,478,684.55/211,645.80
  6. Step 6: Final answer
    x = 107,086.83

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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.