Home / 192,757.08-289,135.48-80,490.16

Finding the Fourth Proportional to 192,757.08, 289,135.48 and 80,490.16

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Solution

The fourth proportional to 192,757.08, 289,135.48 and 80,490.16 is: 120,735.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,757.08 : 289,135.48 = 80,490.16 : x
  2. Step 2: Convert to fraction form
    192,757.08/289,135.48 = 80,490.16/x
  3. Step 3: Cross multiply
    192,757.08x = 289,135.48 × 80,490.16
  4. Step 4: Simplify right side
    192,757.08x = 23,272,561,046.88
  5. Step 5: Solve for x
    x = 23,272,561,046.88/192,757.08
  6. Step 6: Final answer
    x = 120,735.18

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1.5x scale

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.