Home / 209,968.22-289,760.66-114,475.56

Finding the Fourth Proportional to 209,968.22, 289,760.66 and 114,475.56

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Solution

The fourth proportional to 209,968.22, 289,760.66 and 114,475.56 is: 157,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,968.22 : 289,760.66 = 114,475.56 : x
  2. Step 2: Convert to fraction form
    209,968.22/289,760.66 = 114,475.56/x
  3. Step 3: Cross multiply
    209,968.22x = 289,760.66 × 114,475.56
  4. Step 4: Simplify right side
    209,968.22x = 33,170,513,819.47
  5. Step 5: Solve for x
    x = 33,170,513,819.47/209,968.22
  6. Step 6: Final answer
    x = 157,978.74

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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.