Home / 148,736.20-205,255.11-80,752.60

Finding the Fourth Proportional to 148,736.20, 205,255.11 and 80,752.60

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Solution

The fourth proportional to 148,736.20, 205,255.11 and 80,752.60 is: 111,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,736.20 : 205,255.11 = 80,752.60 : x
  2. Step 2: Convert to fraction form
    148,736.20/205,255.11 = 80,752.60/x
  3. Step 3: Cross multiply
    148,736.20x = 205,255.11 × 80,752.60
  4. Step 4: Simplify right side
    148,736.20x = 16,574,883,200.62
  5. Step 5: Solve for x
    x = 16,574,883,200.62/148,736.20
  6. Step 6: Final answer
    x = 111,438.13

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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.