Home / 209,120.82-288,588.49-113,627.52

Finding the Fourth Proportional to 209,120.82, 288,588.49 and 113,627.52

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Solution

The fourth proportional to 209,120.82, 288,588.49 and 113,627.52 is: 156,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,120.82 : 288,588.49 = 113,627.52 : x
  2. Step 2: Convert to fraction form
    209,120.82/288,588.49 = 113,627.52/x
  3. Step 3: Cross multiply
    209,120.82x = 288,588.49 × 113,627.52
  4. Step 4: Simplify right side
    209,120.82x = 32,791,594,419.24
  5. Step 5: Solve for x
    x = 32,791,594,419.24/209,120.82
  6. Step 6: Final answer
    x = 156,806.93

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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.