Home / 161,809.37-223,297.94-90,194.01

Finding the Fourth Proportional to 161,809.37, 223,297.94 and 90,194.01

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Solution

The fourth proportional to 161,809.37, 223,297.94 and 90,194.01 is: 124,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,809.37 : 223,297.94 = 90,194.01 : x
  2. Step 2: Convert to fraction form
    161,809.37/223,297.94 = 90,194.01/x
  3. Step 3: Cross multiply
    161,809.37x = 223,297.94 × 90,194.01
  4. Step 4: Simplify right side
    161,809.37x = 20,140,135,767.79
  5. Step 5: Solve for x
    x = 20,140,135,767.79/161,809.37
  6. Step 6: Final answer
    x = 124,468.29

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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.