Finding the Fourth Proportional to 157,796.27, 217,757.74 and 86,176.31
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Solution
The fourth proportional to 157,796.27, 217,757.74 and 86,176.31 is: 118,922.70
Step by Step Solution
- Step 1: Write the proportion equation
157,796.27 : 217,757.74 = 86,176.31 : x - Step 2: Convert to fraction form
157,796.27/217,757.74 = 86,176.31/x - Step 3: Cross multiply
157,796.27x = 217,757.74 × 86,176.31 - Step 4: Simplify right side
157,796.27x = 18,765,558,507.14 - Step 5: Solve for x
x = 18,765,558,507.14/157,796.27 - Step 6: Final answer
x = 118,922.70
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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.