Home / 200,156.28-276,213.20-109,511.12

Finding the Fourth Proportional to 200,156.28, 276,213.20 and 109,511.12

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Solution

The fourth proportional to 200,156.28, 276,213.20 and 109,511.12 is: 151,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,156.28 : 276,213.20 = 109,511.12 : x
  2. Step 2: Convert to fraction form
    200,156.28/276,213.20 = 109,511.12/x
  3. Step 3: Cross multiply
    200,156.28x = 276,213.20 × 109,511.12
  4. Step 4: Simplify right side
    200,156.28x = 30,248,416,890.78
  5. Step 5: Solve for x
    x = 30,248,416,890.78/200,156.28
  6. Step 6: Final answer
    x = 151,124.00

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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.