Home / 209,109.87-288,574.25-113,618.16

Finding the Fourth Proportional to 209,109.87, 288,574.25 and 113,618.16

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Solution

The fourth proportional to 209,109.87, 288,574.25 and 113,618.16 is: 156,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,109.87 : 288,574.25 = 113,618.16 : x
  2. Step 2: Convert to fraction form
    209,109.87/288,574.25 = 113,618.16/x
  3. Step 3: Cross multiply
    209,109.87x = 288,574.25 × 113,618.16
  4. Step 4: Simplify right side
    209,109.87x = 32,787,274,740.29
  5. Step 5: Solve for x
    x = 32,787,274,740.29/209,109.87
  6. Step 6: Final answer
    x = 156,794.49

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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.