Home / 200,101.24-276,129.40-109,439.56

Finding the Fourth Proportional to 200,101.24, 276,129.40 and 109,439.56

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Solution

The fourth proportional to 200,101.24, 276,129.40 and 109,439.56 is: 151,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,101.24 : 276,129.40 = 109,439.56 : x
  2. Step 2: Convert to fraction form
    200,101.24/276,129.40 = 109,439.56/x
  3. Step 3: Cross multiply
    200,101.24x = 276,129.40 × 109,439.56
  4. Step 4: Simplify right side
    200,101.24x = 30,219,480,039.06
  5. Step 5: Solve for x
    x = 30,219,480,039.06/200,101.24
  6. Step 6: Final answer
    x = 151,020.95

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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.