Home / 139,825.25-209,716.23-76,676.54

Finding the Fourth Proportional to 139,825.25, 209,716.23 and 76,676.54

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Solution

The fourth proportional to 139,825.25, 209,716.23 and 76,676.54 is: 115,002.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,825.25 : 209,716.23 = 76,676.54 : x
  2. Step 2: Convert to fraction form
    139,825.25/209,716.23 = 76,676.54/x
  3. Step 3: Cross multiply
    139,825.25x = 209,716.23 × 76,676.54
  4. Step 4: Simplify right side
    139,825.25x = 16,080,314,898.24
  5. Step 5: Solve for x
    x = 16,080,314,898.24/139,825.25
  6. Step 6: Final answer
    x = 115,002.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.