Home / 209,811.22-289,542.72-114,317.92

Finding the Fourth Proportional to 209,811.22, 289,542.72 and 114,317.92

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Solution

The fourth proportional to 209,811.22, 289,542.72 and 114,317.92 is: 157,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,811.22 : 289,542.72 = 114,317.92 : x
  2. Step 2: Convert to fraction form
    209,811.22/289,542.72 = 114,317.92/x
  3. Step 3: Cross multiply
    209,811.22x = 289,542.72 × 114,317.92
  4. Step 4: Simplify right side
    209,811.22x = 33,099,921,501.54
  5. Step 5: Solve for x
    x = 33,099,921,501.54/209,811.22
  6. Step 6: Final answer
    x = 157,760.49

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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.