Home / 118,949.93-164,126.09-80,739.05

Finding the Fourth Proportional to 118,949.93, 164,126.09 and 80,739.05

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Solution

The fourth proportional to 118,949.93, 164,126.09 and 80,739.05 is: 111,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,949.93 : 164,126.09 = 80,739.05 : x
  2. Step 2: Convert to fraction form
    118,949.93/164,126.09 = 80,739.05/x
  3. Step 3: Cross multiply
    118,949.93x = 164,126.09 × 80,739.05
  4. Step 4: Simplify right side
    118,949.93x = 13,251,384,183.12
  5. Step 5: Solve for x
    x = 13,251,384,183.12/118,949.93
  6. Step 6: Final answer
    x = 111,403.04

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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.