Home / 148,760.92-205,290.06-80,777.56

Finding the Fourth Proportional to 148,760.92, 205,290.06 and 80,777.56

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Solution

The fourth proportional to 148,760.92, 205,290.06 and 80,777.56 is: 111,473.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,760.92 : 205,290.06 = 80,777.56 : x
  2. Step 2: Convert to fraction form
    148,760.92/205,290.06 = 80,777.56/x
  3. Step 3: Cross multiply
    148,760.92x = 205,290.06 × 80,777.56
  4. Step 4: Simplify right side
    148,760.92x = 16,582,830,139.05
  5. Step 5: Solve for x
    x = 16,582,830,139.05/148,760.92
  6. Step 6: Final answer
    x = 111,473.03

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1.5x scale

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.