Finding the Fourth Proportional to 122,716.96, 169,348.56 and 69,724.96
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Solution
The fourth proportional to 122,716.96, 169,348.56 and 69,724.96 is: 96,219.96
Step by Step Solution
- Step 1: Write the proportion equation
122,716.96 : 169,348.56 = 69,724.96 : x - Step 2: Convert to fraction form
122,716.96/169,348.56 = 69,724.96/x - Step 3: Cross multiply
122,716.96x = 169,348.56 × 69,724.96 - Step 4: Simplify right side
122,716.96x = 11,807,821,572.06 - Step 5: Solve for x
x = 11,807,821,572.06/122,716.96 - Step 6: Final answer
x = 96,219.96
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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.