Home / 161,665.45-222,991.44-101,131.04

Finding the Fourth Proportional to 161,665.45, 222,991.44 and 101,131.04

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Solution

The fourth proportional to 161,665.45, 222,991.44 and 101,131.04 is: 139,493.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,665.45 : 222,991.44 = 101,131.04 : x
  2. Step 2: Convert to fraction form
    161,665.45/222,991.44 = 101,131.04/x
  3. Step 3: Cross multiply
    161,665.45x = 222,991.44 × 101,131.04
  4. Step 4: Simplify right side
    161,665.45x = 22,551,356,238.30
  5. Step 5: Solve for x
    x = 22,551,356,238.30/161,665.45
  6. Step 6: Final answer
    x = 139,493.97

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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.