Home / 223,621.22-308,588.37-121,646.81

Finding the Fourth Proportional to 223,621.22, 308,588.37 and 121,646.81

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Solution

The fourth proportional to 223,621.22, 308,588.37 and 121,646.81 is: 167,867.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,621.22 : 308,588.37 = 121,646.81 : x
  2. Step 2: Convert to fraction form
    223,621.22/308,588.37 = 121,646.81/x
  3. Step 3: Cross multiply
    223,621.22x = 308,588.37 × 121,646.81
  4. Step 4: Simplify right side
    223,621.22x = 37,538,790,813.60
  5. Step 5: Solve for x
    x = 37,538,790,813.60/223,621.22
  6. Step 6: Final answer
    x = 167,867.75

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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.