Home / 209,465.57-289,067.66-113,977.51

Finding the Fourth Proportional to 209,465.57, 289,067.66 and 113,977.51

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Solution

The fourth proportional to 209,465.57, 289,067.66 and 113,977.51 is: 157,291.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,465.57 : 289,067.66 = 113,977.51 : x
  2. Step 2: Convert to fraction form
    209,465.57/289,067.66 = 113,977.51/x
  3. Step 3: Cross multiply
    209,465.57x = 289,067.66 × 113,977.51
  4. Step 4: Simplify right side
    209,465.57x = 32,947,212,108.33
  5. Step 5: Solve for x
    x = 32,947,212,108.33/209,465.57
  6. Step 6: Final answer
    x = 157,291.78

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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.