Home / 259,544.70-389,244.15-82,106.10

Finding the Fourth Proportional to 259,544.70, 389,244.15 and 82,106.10

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Solution

The fourth proportional to 259,544.70, 389,244.15 and 82,106.10 is: 123,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,544.70 : 389,244.15 = 82,106.10 : x
  2. Step 2: Convert to fraction form
    259,544.70/389,244.15 = 82,106.10/x
  3. Step 3: Cross multiply
    259,544.70x = 389,244.15 × 82,106.10
  4. Step 4: Simplify right side
    259,544.70x = 31,959,319,104.32
  5. Step 5: Solve for x
    x = 31,959,319,104.32/259,544.70
  6. Step 6: Final answer
    x = 123,136.09

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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.