Home / 148,974.89-205,589.40-80,996.44

Finding the Fourth Proportional to 148,974.89, 205,589.40 and 80,996.44

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Solution

The fourth proportional to 148,974.89, 205,589.40 and 80,996.44 is: 111,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,974.89 : 205,589.40 = 80,996.44 : x
  2. Step 2: Convert to fraction form
    148,974.89/205,589.40 = 80,996.44/x
  3. Step 3: Cross multiply
    148,974.89x = 205,589.40 × 80,996.44
  4. Step 4: Simplify right side
    148,974.89x = 16,652,009,501.74
  5. Step 5: Solve for x
    x = 16,652,009,501.74/148,974.89
  6. Step 6: Final answer
    x = 111,777.29

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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.