Home / 190,280.36-261,988.99-161,540.46

Finding the Fourth Proportional to 190,280.36, 261,988.99 and 161,540.46

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Solution

The fourth proportional to 190,280.36, 261,988.99 and 161,540.46 is: 222,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,280.36 : 261,988.99 = 161,540.46 : x
  2. Step 2: Convert to fraction form
    190,280.36/261,988.99 = 161,540.46/x
  3. Step 3: Cross multiply
    190,280.36x = 261,988.99 × 161,540.46
  4. Step 4: Simplify right side
    190,280.36x = 42,321,821,555.68
  5. Step 5: Solve for x
    x = 42,321,821,555.68/190,280.36
  6. Step 6: Final answer
    x = 222,418.23

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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.