Finding the Fourth Proportional to 159,588.26, 220,231.74 and 87,969.47
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Solution
The fourth proportional to 159,588.26, 220,231.74 and 87,969.47 is: 121,397.84
Step by Step Solution
- Step 1: Write the proportion equation
159,588.26 : 220,231.74 = 87,969.47 : x - Step 2: Convert to fraction form
159,588.26/220,231.74 = 87,969.47/x - Step 3: Cross multiply
159,588.26x = 220,231.74 × 87,969.47 - Step 4: Simplify right side
159,588.26x = 19,373,669,995.56 - Step 5: Solve for x
x = 19,373,669,995.56/159,588.26 - Step 6: Final answer
x = 121,397.84
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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.