Finding the Fourth Proportional to 121,229.44, 167,283.36 and 70,243.18
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Solution
The fourth proportional to 121,229.44, 167,283.36 and 70,243.18 is: 96,927.90
Step by Step Solution
- Step 1: Write the proportion equation
121,229.44 : 167,283.36 = 70,243.18 : x - Step 2: Convert to fraction form
121,229.44/167,283.36 = 70,243.18/x - Step 3: Cross multiply
121,229.44x = 167,283.36 × 70,243.18 - Step 4: Simplify right side
121,229.44x = 11,750,515,167.48 - Step 5: Solve for x
x = 11,750,515,167.48/121,229.44 - Step 6: Final answer
x = 96,927.90
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1.5x scale
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.