Home / 201,819.78-278,511.30-116,986.02

Finding the Fourth Proportional to 201,819.78, 278,511.30 and 116,986.02

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Solution

The fourth proportional to 201,819.78, 278,511.30 and 116,986.02 is: 161,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,819.78 : 278,511.30 = 116,986.02 : x
  2. Step 2: Convert to fraction form
    201,819.78/278,511.30 = 116,986.02/x
  3. Step 3: Cross multiply
    201,819.78x = 278,511.30 × 116,986.02
  4. Step 4: Simplify right side
    201,819.78x = 32,581,928,512.03
  5. Step 5: Solve for x
    x = 32,581,928,512.03/201,819.78
  6. Step 6: Final answer
    x = 161,440.71

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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.