Finding the Fourth Proportional to 122,499.09, 168,924.42 and 115,355.70
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Solution
The fourth proportional to 122,499.09, 168,924.42 and 115,355.70 is: 159,073.79
Step by Step Solution
- Step 1: Write the proportion equation
122,499.09 : 168,924.42 = 115,355.70 : x - Step 2: Convert to fraction form
122,499.09/168,924.42 = 115,355.70/x - Step 3: Cross multiply
122,499.09x = 168,924.42 × 115,355.70 - Step 4: Simplify right side
122,499.09x = 19,486,394,716.19 - Step 5: Solve for x
x = 19,486,394,716.19/122,499.09 - Step 6: Final answer
x = 159,073.79
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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.