Finding the Third Proportional to 87,129.75 and 190,661.75
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Solution
The third proportional to 87,129.75 and 190,661.75 is: 417,215.74
Step by Step Solution
- Step 1: Write the proportion equation
87,129.75 : 190,661.75 = 190,661.75 : x - Step 2: Convert to fraction form
87,129.75/190,661.75 = 190,661.75/x - Step 3: Cross multiply
87,129.75x = 190,661.75 × 190,661.75 - Step 4: Simplify right side
87,129.75x = 36,351,902,913.06 - Step 5: Solve for x
x = 36,351,902,913.06/87,129.75 - Step 6: Final answer
x = 417,215.74
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.