Finding the Fourth Proportional to 168,081.93, 231,948.79 and 91,602.99
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Solution
The fourth proportional to 168,081.93, 231,948.79 and 91,602.99 is: 126,409.80
Step by Step Solution
- Step 1: Write the proportion equation
168,081.93 : 231,948.79 = 91,602.99 : x - Step 2: Convert to fraction form
168,081.93/231,948.79 = 91,602.99/x - Step 3: Cross multiply
168,081.93x = 231,948.79 × 91,602.99 - Step 4: Simplify right side
168,081.93x = 21,247,202,461.87 - Step 5: Solve for x
x = 21,247,202,461.87/168,081.93 - Step 6: Final answer
x = 126,409.80
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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.