Home / 190,407.44-285,078.68-143,513.36

Finding the Fourth Proportional to 190,407.44, 285,078.68 and 143,513.36

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Solution

The fourth proportional to 190,407.44, 285,078.68 and 143,513.36 is: 214,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,407.44 : 285,078.68 = 143,513.36 : x
  2. Step 2: Convert to fraction form
    190,407.44/285,078.68 = 143,513.36/x
  3. Step 3: Cross multiply
    190,407.44x = 285,078.68 × 143,513.36
  4. Step 4: Simplify right side
    190,407.44x = 40,912,599,231.16
  5. Step 5: Solve for x
    x = 40,912,599,231.16/190,407.44
  6. Step 6: Final answer
    x = 214,868.70

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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.