Home / 209,093.32-313,651.68-66,951.10

Finding the Fourth Proportional to 209,093.32, 313,651.68 and 66,951.10

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Solution

The fourth proportional to 209,093.32, 313,651.68 and 66,951.10 is: 100,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,093.32 : 313,651.68 = 66,951.10 : x
  2. Step 2: Convert to fraction form
    209,093.32/313,651.68 = 66,951.10/x
  3. Step 3: Cross multiply
    209,093.32x = 313,651.68 × 66,951.10
  4. Step 4: Simplify right side
    209,093.32x = 20,999,324,992.85
  5. Step 5: Solve for x
    x = 20,999,324,992.85/209,093.32
  6. Step 6: Final answer
    x = 100,430.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.