Home / 223,171.64-307,975.88-121,196.36

Finding the Fourth Proportional to 223,171.64, 307,975.88 and 121,196.36

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Solution

The fourth proportional to 223,171.64, 307,975.88 and 121,196.36 is: 167,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,171.64 : 307,975.88 = 121,196.36 : x
  2. Step 2: Convert to fraction form
    223,171.64/307,975.88 = 121,196.36/x
  3. Step 3: Cross multiply
    223,171.64x = 307,975.88 × 121,196.36
  4. Step 4: Simplify right side
    223,171.64x = 37,325,555,623.80
  5. Step 5: Solve for x
    x = 37,325,555,623.80/223,171.64
  6. Step 6: Final answer
    x = 167,250.44

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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.