Home / 190,219.32-285,331.41-90,389.25

Finding the Fourth Proportional to 190,219.32, 285,331.41 and 90,389.25

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Solution

The fourth proportional to 190,219.32, 285,331.41 and 90,389.25 is: 135,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,219.32 : 285,331.41 = 90,389.25 : x
  2. Step 2: Convert to fraction form
    190,219.32/285,331.41 = 90,389.25/x
  3. Step 3: Cross multiply
    190,219.32x = 285,331.41 × 90,389.25
  4. Step 4: Simplify right side
    190,219.32x = 25,790,892,151.34
  5. Step 5: Solve for x
    x = 25,790,892,151.34/190,219.32
  6. Step 6: Final answer
    x = 135,585.03

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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.