Home / 211,908.42-317,861.82-54,136.62

Finding the Fourth Proportional to 211,908.42, 317,861.82 and 54,136.62

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Solution

The fourth proportional to 211,908.42, 317,861.82 and 54,136.62 is: 81,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,908.42 : 317,861.82 = 54,136.62 : x
  2. Step 2: Convert to fraction form
    211,908.42/317,861.82 = 54,136.62/x
  3. Step 3: Cross multiply
    211,908.42x = 317,861.82 × 54,136.62
  4. Step 4: Simplify right side
    211,908.42x = 17,207,964,561.85
  5. Step 5: Solve for x
    x = 17,207,964,561.85/211,908.42
  6. Step 6: Final answer
    x = 81,204.72

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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.