Home / 149,238.24-205,952.08-82,170.40

Finding the Fourth Proportional to 149,238.24, 205,952.08 and 82,170.40

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Solution

The fourth proportional to 149,238.24, 205,952.08 and 82,170.40 is: 113,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,238.24 : 205,952.08 = 82,170.40 : x
  2. Step 2: Convert to fraction form
    149,238.24/205,952.08 = 82,170.40/x
  3. Step 3: Cross multiply
    149,238.24x = 205,952.08 × 82,170.40
  4. Step 4: Simplify right side
    149,238.24x = 16,923,164,794.43
  5. Step 5: Solve for x
    x = 16,923,164,794.43/149,238.24
  6. Step 6: Final answer
    x = 113,396.97

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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.