Home / 208,467.20-287,715.59-131,993.39

Finding the Fourth Proportional to 208,467.20, 287,715.59 and 131,993.39

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Solution

The fourth proportional to 208,467.20, 287,715.59 and 131,993.39 is: 182,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,467.20 : 287,715.59 = 131,993.39 : x
  2. Step 2: Convert to fraction form
    208,467.20/287,715.59 = 131,993.39/x
  3. Step 3: Cross multiply
    208,467.20x = 287,715.59 × 131,993.39
  4. Step 4: Simplify right side
    208,467.20x = 37,976,556,079.95
  5. Step 5: Solve for x
    x = 37,976,556,079.95/208,467.20
  6. Step 6: Final answer
    x = 182,170.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.