Home / 201,819.76-278,511.32-116,986.02

Finding the Fourth Proportional to 201,819.76, 278,511.32 and 116,986.02

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Solution

The fourth proportional to 201,819.76, 278,511.32 and 116,986.02 is: 161,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,819.76 : 278,511.32 = 116,986.02 : x
  2. Step 2: Convert to fraction form
    201,819.76/278,511.32 = 116,986.02/x
  3. Step 3: Cross multiply
    201,819.76x = 278,511.32 × 116,986.02
  4. Step 4: Simplify right side
    201,819.76x = 32,581,930,851.75
  5. Step 5: Solve for x
    x = 32,581,930,851.75/201,819.76
  6. Step 6: Final answer
    x = 161,440.74

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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.