Finding the Fourth Proportional to 121,896.25, 168,213.58 and 68,187.17
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Solution
The fourth proportional to 121,896.25, 168,213.58 and 68,187.17 is: 94,096.48
Step by Step Solution
- Step 1: Write the proportion equation
121,896.25 : 168,213.58 = 68,187.17 : x - Step 2: Convert to fraction form
121,896.25/168,213.58 = 68,187.17/x - Step 3: Cross multiply
121,896.25x = 168,213.58 × 68,187.17 - Step 4: Simplify right side
121,896.25x = 11,470,008,225.83 - Step 5: Solve for x
x = 11,470,008,225.83/121,896.25 - Step 6: Final answer
x = 94,096.48
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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.