Home / 149,118.38-205,783.36-82,050.38

Finding the Fourth Proportional to 149,118.38, 205,783.36 and 82,050.38

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Solution

The fourth proportional to 149,118.38, 205,783.36 and 82,050.38 is: 113,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,118.38 : 205,783.36 = 82,050.38 : x
  2. Step 2: Convert to fraction form
    149,118.38/205,783.36 = 82,050.38/x
  3. Step 3: Cross multiply
    149,118.38x = 205,783.36 × 82,050.38
  4. Step 4: Simplify right side
    149,118.38x = 16,884,601,651.63
  5. Step 5: Solve for x
    x = 16,884,601,651.63/149,118.38
  6. Step 6: Final answer
    x = 113,229.52

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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.