Home / 209,480.58-289,080.39-113,987.05

Finding the Fourth Proportional to 209,480.58, 289,080.39 and 113,987.05

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Solution

The fourth proportional to 209,480.58, 289,080.39 and 113,987.05 is: 157,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,480.58 : 289,080.39 = 113,987.05 : x
  2. Step 2: Convert to fraction form
    209,480.58/289,080.39 = 113,987.05/x
  3. Step 3: Cross multiply
    209,480.58x = 289,080.39 × 113,987.05
  4. Step 4: Simplify right side
    209,480.58x = 32,951,420,573.70
  5. Step 5: Solve for x
    x = 32,951,420,573.70/209,480.58
  6. Step 6: Final answer
    x = 157,300.60

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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.