Home / 209,161.95-288,645.73-113,668.64

Finding the Fourth Proportional to 209,161.95, 288,645.73 and 113,668.64

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Solution

The fourth proportional to 209,161.95, 288,645.73 and 113,668.64 is: 156,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,161.95 : 288,645.73 = 113,668.64 : x
  2. Step 2: Convert to fraction form
    209,161.95/288,645.73 = 113,668.64/x
  3. Step 3: Cross multiply
    209,161.95x = 288,645.73 × 113,668.64
  4. Step 4: Simplify right side
    209,161.95x = 32,809,967,737.74
  5. Step 5: Solve for x
    x = 32,809,967,737.74/209,161.95
  6. Step 6: Final answer
    x = 156,863.94

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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.