Home / 148,997.73-205,621.25-81,014.61

Finding the Fourth Proportional to 148,997.73, 205,621.25 and 81,014.61

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Solution

The fourth proportional to 148,997.73, 205,621.25 and 81,014.61 is: 111,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,997.73 : 205,621.25 = 81,014.61 : x
  2. Step 2: Convert to fraction form
    148,997.73/205,621.25 = 81,014.61/x
  3. Step 3: Cross multiply
    148,997.73x = 205,621.25 × 81,014.61
  4. Step 4: Simplify right side
    148,997.73x = 16,658,324,971.39
  5. Step 5: Solve for x
    x = 16,658,324,971.39/148,997.73
  6. Step 6: Final answer
    x = 111,802.54

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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.