Home / 104,111.14-155,929.60-81,480.66

Finding the Fourth Proportional to 104,111.14, 155,929.60 and 81,480.66

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Solution

The fourth proportional to 104,111.14, 155,929.60 and 81,480.66 is: 122,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,111.14 : 155,929.60 = 81,480.66 : x
  2. Step 2: Convert to fraction form
    104,111.14/155,929.60 = 81,480.66/x
  3. Step 3: Cross multiply
    104,111.14x = 155,929.60 × 81,480.66
  4. Step 4: Simplify right side
    104,111.14x = 12,705,246,721.54
  5. Step 5: Solve for x
    x = 12,705,246,721.54/104,111.14
  6. Step 6: Final answer
    x = 122,035.42

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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.