Finding the Fourth Proportional to 157,567.38, 217,523.28 and 121,676.82
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Solution
The fourth proportional to 157,567.38, 217,523.28 and 121,676.82 is: 167,976.02
Step by Step Solution
- Step 1: Write the proportion equation
157,567.38 : 217,523.28 = 121,676.82 : x - Step 2: Convert to fraction form
157,567.38/217,523.28 = 121,676.82/x - Step 3: Cross multiply
157,567.38x = 217,523.28 × 121,676.82 - Step 4: Simplify right side
157,567.38x = 26,467,540,986.37 - Step 5: Solve for x
x = 26,467,540,986.37/157,567.38 - Step 6: Final answer
x = 167,976.02
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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.