Home / 144,832.19-199,857.42-81,157.68

Finding the Fourth Proportional to 144,832.19, 199,857.42 and 81,157.68

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Solution

The fourth proportional to 144,832.19, 199,857.42 and 81,157.68 is: 111,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,832.19 : 199,857.42 = 81,157.68 : x
  2. Step 2: Convert to fraction form
    144,832.19/199,857.42 = 81,157.68/x
  3. Step 3: Cross multiply
    144,832.19x = 199,857.42 × 81,157.68
  4. Step 4: Simplify right side
    144,832.19x = 16,219,964,537.99
  5. Step 5: Solve for x
    x = 16,219,964,537.99/144,832.19
  6. Step 6: Final answer
    x = 111,991.44

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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.