Home / 127,600.16-191,271.57-80,249.09

Finding the Fourth Proportional to 127,600.16, 191,271.57 and 80,249.09

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Solution

The fourth proportional to 127,600.16, 191,271.57 and 80,249.09 is: 120,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,600.16 : 191,271.57 = 80,249.09 : x
  2. Step 2: Convert to fraction form
    127,600.16/191,271.57 = 80,249.09/x
  3. Step 3: Cross multiply
    127,600.16x = 191,271.57 × 80,249.09
  4. Step 4: Simplify right side
    127,600.16x = 15,349,368,479.01
  5. Step 5: Solve for x
    x = 15,349,368,479.01/127,600.16
  6. Step 6: Final answer
    x = 120,292.71

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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.