Home / 271,145.49-406,636.11-81,555.52

Finding the Fourth Proportional to 271,145.49, 406,636.11 and 81,555.52

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Solution

The fourth proportional to 271,145.49, 406,636.11 and 81,555.52 is: 122,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,145.49 : 406,636.11 = 81,555.52 : x
  2. Step 2: Convert to fraction form
    271,145.49/406,636.11 = 81,555.52/x
  3. Step 3: Cross multiply
    271,145.49x = 406,636.11 × 81,555.52
  4. Step 4: Simplify right side
    271,145.49x = 33,163,418,385.24
  5. Step 5: Solve for x
    x = 33,163,418,385.24/271,145.49
  6. Step 6: Final answer
    x = 122,308.57

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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.