Finding the Fourth Proportional to 121,112.24, 167,136.41 and 66,670.70
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Solution
The fourth proportional to 121,112.24, 167,136.41 and 66,670.70 is: 92,006.40
Step by Step Solution
- Step 1: Write the proportion equation
121,112.24 : 167,136.41 = 66,670.70 : x - Step 2: Convert to fraction form
121,112.24/167,136.41 = 66,670.70/x - Step 3: Cross multiply
121,112.24x = 167,136.41 × 66,670.70 - Step 4: Simplify right side
121,112.24x = 11,143,101,450.19 - Step 5: Solve for x
x = 11,143,101,450.19/121,112.24 - Step 6: Final answer
x = 92,006.40
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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.