Home / 148,623.94-205,100.74-80,640.88

Finding the Fourth Proportional to 148,623.94, 205,100.74 and 80,640.88

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Solution

The fourth proportional to 148,623.94, 205,100.74 and 80,640.88 is: 111,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,623.94 : 205,100.74 = 80,640.88 : x
  2. Step 2: Convert to fraction form
    148,623.94/205,100.74 = 80,640.88/x
  3. Step 3: Cross multiply
    148,623.94x = 205,100.74 × 80,640.88
  4. Step 4: Simplify right side
    148,623.94x = 16,539,504,162.25
  5. Step 5: Solve for x
    x = 16,539,504,162.25/148,623.94
  6. Step 6: Final answer
    x = 111,284.25

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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.