Home / 200,021.75-276,018.67-109,360.79

Finding the Fourth Proportional to 200,021.75, 276,018.67 and 109,360.79

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Solution

The fourth proportional to 200,021.75, 276,018.67 and 109,360.79 is: 150,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,021.75 : 276,018.67 = 109,360.79 : x
  2. Step 2: Convert to fraction form
    200,021.75/276,018.67 = 109,360.79/x
  3. Step 3: Cross multiply
    200,021.75x = 276,018.67 × 109,360.79
  4. Step 4: Simplify right side
    200,021.75x = 30,185,619,805.95
  5. Step 5: Solve for x
    x = 30,185,619,805.95/200,021.75
  6. Step 6: Final answer
    x = 150,911.69

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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.