Home / 188,310.26-259,913.39-107,784.47

Finding the Fourth Proportional to 188,310.26, 259,913.39 and 107,784.47

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Solution

The fourth proportional to 188,310.26, 259,913.39 and 107,784.47 is: 148,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,310.26 : 259,913.39 = 107,784.47 : x
  2. Step 2: Convert to fraction form
    188,310.26/259,913.39 = 107,784.47/x
  3. Step 3: Cross multiply
    188,310.26x = 259,913.39 × 107,784.47
  4. Step 4: Simplify right side
    188,310.26x = 28,014,625,148.56
  5. Step 5: Solve for x
    x = 28,014,625,148.56/188,310.26
  6. Step 6: Final answer
    x = 148,768.45

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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.