Finding the Fourth Proportional to 119,620.92, 165,080.61 and 68,642.99
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Solution
The fourth proportional to 119,620.92, 165,080.61 and 68,642.99 is: 94,729.47
Step by Step Solution
- Step 1: Write the proportion equation
119,620.92 : 165,080.61 = 68,642.99 : x - Step 2: Convert to fraction form
119,620.92/165,080.61 = 68,642.99/x - Step 3: Cross multiply
119,620.92x = 165,080.61 × 68,642.99 - Step 4: Simplify right side
119,620.92x = 11,331,625,836.02 - Step 5: Solve for x
x = 11,331,625,836.02/119,620.92 - Step 6: Final answer
x = 94,729.47
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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.