Home / 190,311.21-262,610.33-105,412.41

Finding the Fourth Proportional to 190,311.21, 262,610.33 and 105,412.41

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Solution

The fourth proportional to 190,311.21, 262,610.33 and 105,412.41 is: 145,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,311.21 : 262,610.33 = 105,412.41 : x
  2. Step 2: Convert to fraction form
    190,311.21/262,610.33 = 105,412.41/x
  3. Step 3: Cross multiply
    190,311.21x = 262,610.33 × 105,412.41
  4. Step 4: Simplify right side
    190,311.21x = 27,682,387,776.20
  5. Step 5: Solve for x
    x = 27,682,387,776.20/190,311.21
  6. Step 6: Final answer
    x = 145,458.52

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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.