Home / 190,405.44-285,075.68-143,511.36

Finding the Fourth Proportional to 190,405.44, 285,075.68 and 143,511.36

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Solution

The fourth proportional to 190,405.44, 285,075.68 and 143,511.36 is: 214,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,405.44 : 285,075.68 = 143,511.36 : x
  2. Step 2: Convert to fraction form
    190,405.44/285,075.68 = 143,511.36/x
  3. Step 3: Cross multiply
    190,405.44x = 285,075.68 × 143,511.36
  4. Step 4: Simplify right side
    190,405.44x = 40,911,598,539.72
  5. Step 5: Solve for x
    x = 40,911,598,539.72/190,405.44
  6. Step 6: Final answer
    x = 214,865.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.