Home / 209,115.31-288,574.97-113,622.69

Finding the Fourth Proportional to 209,115.31, 288,574.97 and 113,622.69

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Solution

The fourth proportional to 209,115.31, 288,574.97 and 113,622.69 is: 156,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,115.31 : 288,574.97 = 113,622.69 : x
  2. Step 2: Convert to fraction form
    209,115.31/288,574.97 = 113,622.69/x
  3. Step 3: Cross multiply
    209,115.31x = 288,574.97 × 113,622.69
  4. Step 4: Simplify right side
    209,115.31x = 32,788,664,358.07
  5. Step 5: Solve for x
    x = 32,788,664,358.07/209,115.31
  6. Step 6: Final answer
    x = 156,797.05

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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.