Home / 102,825.77-153,960.39-67,198.32

Finding the Fourth Proportional to 102,825.77, 153,960.39 and 67,198.32

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Solution

The fourth proportional to 102,825.77, 153,960.39 and 67,198.32 is: 100,615.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,825.77 : 153,960.39 = 67,198.32 : x
  2. Step 2: Convert to fraction form
    102,825.77/153,960.39 = 67,198.32/x
  3. Step 3: Cross multiply
    102,825.77x = 153,960.39 × 67,198.32
  4. Step 4: Simplify right side
    102,825.77x = 10,345,879,554.54
  5. Step 5: Solve for x
    x = 10,345,879,554.54/102,825.77
  6. Step 6: Final answer
    x = 100,615.63

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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.