Home / 100,951.75-139,184.02-82,735.42

Finding the Fourth Proportional to 100,951.75, 139,184.02 and 82,735.42

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Solution

The fourth proportional to 100,951.75, 139,184.02 and 82,735.42 is: 114,068.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,951.75 : 139,184.02 = 82,735.42 : x
  2. Step 2: Convert to fraction form
    100,951.75/139,184.02 = 82,735.42/x
  3. Step 3: Cross multiply
    100,951.75x = 139,184.02 × 82,735.42
  4. Step 4: Simplify right side
    100,951.75x = 11,515,448,351.99
  5. Step 5: Solve for x
    x = 11,515,448,351.99/100,951.75
  6. Step 6: Final answer
    x = 114,068.83

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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.