Home / 201,819.92-278,511.52-116,986.20

Finding the Fourth Proportional to 201,819.92, 278,511.52 and 116,986.20

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Solution

The fourth proportional to 201,819.92, 278,511.52 and 116,986.20 is: 161,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,819.92 : 278,511.52 = 116,986.20 : x
  2. Step 2: Convert to fraction form
    201,819.92/278,511.52 = 116,986.20/x
  3. Step 3: Cross multiply
    201,819.92x = 278,511.52 × 116,986.20
  4. Step 4: Simplify right side
    201,819.92x = 32,582,004,381.02
  5. Step 5: Solve for x
    x = 32,582,004,381.02/201,819.92
  6. Step 6: Final answer
    x = 161,440.97

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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.