Home / 137,968.03-190,396.54-80,610.61

Finding the Fourth Proportional to 137,968.03, 190,396.54 and 80,610.61

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Solution

The fourth proportional to 137,968.03, 190,396.54 and 80,610.61 is: 111,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,968.03 : 190,396.54 = 80,610.61 : x
  2. Step 2: Convert to fraction form
    137,968.03/190,396.54 = 80,610.61/x
  3. Step 3: Cross multiply
    137,968.03x = 190,396.54 × 80,610.61
  4. Step 4: Simplify right side
    137,968.03x = 15,347,981,231.29
  5. Step 5: Solve for x
    x = 15,347,981,231.29/137,968.03
  6. Step 6: Final answer
    x = 111,243.03

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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.