Home / 209,107.62-288,571.14-113,615.91

Finding the Fourth Proportional to 209,107.62, 288,571.14 and 113,615.91

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Solution

The fourth proportional to 209,107.62, 288,571.14 and 113,615.91 is: 156,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,107.62 : 288,571.14 = 113,615.91 : x
  2. Step 2: Convert to fraction form
    209,107.62/288,571.14 = 113,615.91/x
  3. Step 3: Cross multiply
    209,107.62x = 288,571.14 × 113,615.91
  4. Step 4: Simplify right side
    209,107.62x = 32,786,272,670.84
  5. Step 5: Solve for x
    x = 32,786,272,670.84/209,107.62
  6. Step 6: Final answer
    x = 156,791.38

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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.