Home / 99,535.20-149,299.60-32,978.40

Finding the Fourth Proportional to 99,535.20, 149,299.60 and 32,978.40

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Solution

The fourth proportional to 99,535.20, 149,299.60 and 32,978.40 is: 49,466.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,535.20 : 149,299.60 = 32,978.40 : x
  2. Step 2: Convert to fraction form
    99,535.20/149,299.60 = 32,978.40/x
  3. Step 3: Cross multiply
    99,535.20x = 149,299.60 × 32,978.40
  4. Step 4: Simplify right side
    99,535.20x = 4,923,661,928.64
  5. Step 5: Solve for x
    x = 4,923,661,928.64/99,535.20
  6. Step 6: Final answer
    x = 49,466.54

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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.