Finding the Fourth Proportional to 122,357.13, 168,755.44 and 101,099.49
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Solution
The fourth proportional to 122,357.13, 168,755.44 and 101,099.49 is: 139,436.82
Step by Step Solution
- Step 1: Write the proportion equation
122,357.13 : 168,755.44 = 101,099.49 : x - Step 2: Convert to fraction form
122,357.13/168,755.44 = 101,099.49/x - Step 3: Cross multiply
122,357.13x = 168,755.44 × 101,099.49 - Step 4: Simplify right side
122,357.13x = 17,061,088,918.73 - Step 5: Solve for x
x = 17,061,088,918.73/122,357.13 - Step 6: Final answer
x = 139,436.82
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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.