Home / 190,213.58-262,491.50-105,328.82

Finding the Fourth Proportional to 190,213.58, 262,491.50 and 105,328.82

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Solution

The fourth proportional to 190,213.58, 262,491.50 and 105,328.82 is: 145,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,213.58 : 262,491.50 = 105,328.82 : x
  2. Step 2: Convert to fraction form
    190,213.58/262,491.50 = 105,328.82/x
  3. Step 3: Cross multiply
    190,213.58x = 262,491.50 × 105,328.82
  4. Step 4: Simplify right side
    190,213.58x = 27,647,920,874.58
  5. Step 5: Solve for x
    x = 27,647,920,874.58/190,213.58
  6. Step 6: Final answer
    x = 145,351.98

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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.