Home / 192,860.20-266,144.10-107,980.36

Finding the Fourth Proportional to 192,860.20, 266,144.10 and 107,980.36

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Solution

The fourth proportional to 192,860.20, 266,144.10 and 107,980.36 is: 149,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,860.20 : 266,144.10 = 107,980.36 : x
  2. Step 2: Convert to fraction form
    192,860.20/266,144.10 = 107,980.36/x
  3. Step 3: Cross multiply
    192,860.20x = 266,144.10 × 107,980.36
  4. Step 4: Simplify right side
    192,860.20x = 28,738,335,729.88
  5. Step 5: Solve for x
    x = 28,738,335,729.88/192,860.20
  6. Step 6: Final answer
    x = 149,011.23

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1.5x scale

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.