Home / 211,961.76-317,822.85-69,768.69

Finding the Fourth Proportional to 211,961.76, 317,822.85 and 69,768.69

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Solution

The fourth proportional to 211,961.76, 317,822.85 and 69,768.69 is: 104,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,961.76 : 317,822.85 = 69,768.69 : x
  2. Step 2: Convert to fraction form
    211,961.76/317,822.85 = 69,768.69/x
  3. Step 3: Cross multiply
    211,961.76x = 317,822.85 × 69,768.69
  4. Step 4: Simplify right side
    211,961.76x = 22,174,083,896.57
  5. Step 5: Solve for x
    x = 22,174,083,896.57/211,961.76
  6. Step 6: Final answer
    x = 104,613.61

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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.