Home / 161,919.21-223,448.73-89,320.44

Finding the Fourth Proportional to 161,919.21, 223,448.73 and 89,320.44

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Solution

The fourth proportional to 161,919.21, 223,448.73 and 89,320.44 is: 123,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,919.21 : 223,448.73 = 89,320.44 : x
  2. Step 2: Convert to fraction form
    161,919.21/223,448.73 = 89,320.44/x
  3. Step 3: Cross multiply
    161,919.21x = 223,448.73 × 89,320.44
  4. Step 4: Simplify right side
    161,919.21x = 19,958,538,881.04
  5. Step 5: Solve for x
    x = 19,958,538,881.04/161,919.21
  6. Step 6: Final answer
    x = 123,262.33

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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.