Home / 99,455.40-149,183.10-40,260.60

Finding the Fourth Proportional to 99,455.40, 149,183.10 and 40,260.60

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Solution

The fourth proportional to 99,455.40, 149,183.10 and 40,260.60 is: 60,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455.40 : 149,183.10 = 40,260.60 : x
  2. Step 2: Convert to fraction form
    99,455.40/149,183.10 = 40,260.60/x
  3. Step 3: Cross multiply
    99,455.40x = 149,183.10 × 40,260.60
  4. Step 4: Simplify right side
    99,455.40x = 6,006,201,115.86
  5. Step 5: Solve for x
    x = 6,006,201,115.86/99,455.40
  6. Step 6: Final answer
    x = 60,390.90

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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.