Home / 141,136.65-211,636.94-81,989.24

Finding the Fourth Proportional to 141,136.65, 211,636.94 and 81,989.24

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Solution

The fourth proportional to 141,136.65, 211,636.94 and 81,989.24 is: 122,944.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,136.65 : 211,636.94 = 81,989.24 : x
  2. Step 2: Convert to fraction form
    141,136.65/211,636.94 = 81,989.24/x
  3. Step 3: Cross multiply
    141,136.65x = 211,636.94 × 81,989.24
  4. Step 4: Simplify right side
    141,136.65x = 17,351,950,398.39
  5. Step 5: Solve for x
    x = 17,351,950,398.39/141,136.65
  6. Step 6: Final answer
    x = 122,944.33

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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.