Home / 148,201.75-204,518.43-81,133.75

Finding the Fourth Proportional to 148,201.75, 204,518.43 and 81,133.75

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Solution

The fourth proportional to 148,201.75, 204,518.43 and 81,133.75 is: 111,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,201.75 : 204,518.43 = 81,133.75 : x
  2. Step 2: Convert to fraction form
    148,201.75/204,518.43 = 81,133.75/x
  3. Step 3: Cross multiply
    148,201.75x = 204,518.43 × 81,133.75
  4. Step 4: Simplify right side
    148,201.75x = 16,593,347,170.01
  5. Step 5: Solve for x
    x = 16,593,347,170.01/148,201.75
  6. Step 6: Final answer
    x = 111,964.58

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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.