Home / 211,614.76-317,446.23-76,742.38

Finding the Fourth Proportional to 211,614.76, 317,446.23 and 76,742.38

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Solution

The fourth proportional to 211,614.76, 317,446.23 and 76,742.38 is: 115,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,614.76 : 317,446.23 = 76,742.38 : x
  2. Step 2: Convert to fraction form
    211,614.76/317,446.23 = 76,742.38/x
  3. Step 3: Cross multiply
    211,614.76x = 317,446.23 × 76,742.38
  4. Step 4: Simplify right side
    211,614.76x = 24,361,579,212.23
  5. Step 5: Solve for x
    x = 24,361,579,212.23/211,614.76
  6. Step 6: Final answer
    x = 115,122.31

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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.