Home / 137,270.26-205,940.88-80,392.24

Finding the Fourth Proportional to 137,270.26, 205,940.88 and 80,392.24

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Solution

The fourth proportional to 137,270.26, 205,940.88 and 80,392.24 is: 120,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,270.26 : 205,940.88 = 80,392.24 : x
  2. Step 2: Convert to fraction form
    137,270.26/205,940.88 = 80,392.24/x
  3. Step 3: Cross multiply
    137,270.26x = 205,940.88 × 80,392.24
  4. Step 4: Simplify right side
    137,270.26x = 16,556,048,650.77
  5. Step 5: Solve for x
    x = 16,556,048,650.77/137,270.26
  6. Step 6: Final answer
    x = 120,609.14

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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.