Home / 223,144.38-307,939.23-121,169.34

Finding the Fourth Proportional to 223,144.38, 307,939.23 and 121,169.34

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Solution

The fourth proportional to 223,144.38, 307,939.23 and 121,169.34 is: 167,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,144.38 : 307,939.23 = 121,169.34 : x
  2. Step 2: Convert to fraction form
    223,144.38/307,939.23 = 121,169.34/x
  3. Step 3: Cross multiply
    223,144.38x = 307,939.23 × 121,169.34
  4. Step 4: Simplify right side
    223,144.38x = 37,312,793,259.21
  5. Step 5: Solve for x
    x = 37,312,793,259.21/223,144.38
  6. Step 6: Final answer
    x = 167,213.68

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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.