Home / 148,604.12-205,074.60-80,621.36

Finding the Fourth Proportional to 148,604.12, 205,074.60 and 80,621.36

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Solution

The fourth proportional to 148,604.12, 205,074.60 and 80,621.36 is: 111,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,604.12 : 205,074.60 = 80,621.36 : x
  2. Step 2: Convert to fraction form
    148,604.12/205,074.60 = 80,621.36/x
  3. Step 3: Cross multiply
    148,604.12x = 205,074.60 × 80,621.36
  4. Step 4: Simplify right side
    148,604.12x = 16,533,393,153.46
  5. Step 5: Solve for x
    x = 16,533,393,153.46/148,604.12
  6. Step 6: Final answer
    x = 111,257.97

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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.