Home / 209,105.64-313,468.38-75,928.68

Finding the Fourth Proportional to 209,105.64, 313,468.38 and 75,928.68

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Solution

The fourth proportional to 209,105.64, 313,468.38 and 75,928.68 is: 113,824.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,105.64 : 313,468.38 = 75,928.68 : x
  2. Step 2: Convert to fraction form
    209,105.64/313,468.38 = 75,928.68/x
  3. Step 3: Cross multiply
    209,105.64x = 313,468.38 × 75,928.68
  4. Step 4: Simplify right side
    209,105.64x = 23,801,240,315.14
  5. Step 5: Solve for x
    x = 23,801,240,315.14/209,105.64
  6. Step 6: Final answer
    x = 113,824.00

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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.