Home / 148,351.45-204,724.16-80,369.75

Finding the Fourth Proportional to 148,351.45, 204,724.16 and 80,369.75

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Solution

The fourth proportional to 148,351.45, 204,724.16 and 80,369.75 is: 110,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,351.45 : 204,724.16 = 80,369.75 : x
  2. Step 2: Convert to fraction form
    148,351.45/204,724.16 = 80,369.75/x
  3. Step 3: Cross multiply
    148,351.45x = 204,724.16 × 80,369.75
  4. Step 4: Simplify right side
    148,351.45x = 16,453,629,969.51
  5. Step 5: Solve for x
    x = 16,453,629,969.51/148,351.45
  6. Step 6: Final answer
    x = 110,909.80

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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.