Home / 190,396.40-262,757.49-105,511.64

Finding the Fourth Proportional to 190,396.40, 262,757.49 and 105,511.64

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Solution

The fourth proportional to 190,396.40, 262,757.49 and 105,511.64 is: 145,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,396.40 : 262,757.49 = 105,511.64 : x
  2. Step 2: Convert to fraction form
    190,396.40/262,757.49 = 105,511.64/x
  3. Step 3: Cross multiply
    190,396.40x = 262,757.49 × 105,511.64
  4. Step 4: Simplify right side
    190,396.40x = 27,723,973,692.18
  5. Step 5: Solve for x
    x = 27,723,973,692.18/190,396.40
  6. Step 6: Final answer
    x = 145,611.86

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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.