Home / 197,911.78-296,860.37-85,620.26

Finding the Fourth Proportional to 197,911.78, 296,860.37 and 85,620.26

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Solution

The fourth proportional to 197,911.78, 296,860.37 and 85,620.26 is: 128,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,911.78 : 296,860.37 = 85,620.26 : x
  2. Step 2: Convert to fraction form
    197,911.78/296,860.37 = 85,620.26/x
  3. Step 3: Cross multiply
    197,911.78x = 296,860.37 × 85,620.26
  4. Step 4: Simplify right side
    197,911.78x = 25,417,262,063.10
  5. Step 5: Solve for x
    x = 25,417,262,063.10/197,911.78
  6. Step 6: Final answer
    x = 128,427.23

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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.