Home / 102,777.72-154,183.21-31,683.73

Finding the Fourth Proportional to 102,777.72, 154,183.21 and 31,683.73

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Solution

The fourth proportional to 102,777.72, 154,183.21 and 31,683.73 is: 47,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,777.72 : 154,183.21 = 31,683.73 : x
  2. Step 2: Convert to fraction form
    102,777.72/154,183.21 = 31,683.73/x
  3. Step 3: Cross multiply
    102,777.72x = 154,183.21 × 31,683.73
  4. Step 4: Simplify right side
    102,777.72x = 4,885,098,863.93
  5. Step 5: Solve for x
    x = 4,885,098,863.93/102,777.72
  6. Step 6: Final answer
    x = 47,530.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.