Finding the Fourth Proportional to 119,836.14, 165,383.82 and 66,131.52
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Solution
The fourth proportional to 119,836.14, 165,383.82 and 66,131.52 is: 91,266.99
Step by Step Solution
- Step 1: Write the proportion equation
119,836.14 : 165,383.82 = 66,131.52 : x - Step 2: Convert to fraction form
119,836.14/165,383.82 = 66,131.52/x - Step 3: Cross multiply
119,836.14x = 165,383.82 × 66,131.52 - Step 4: Simplify right side
119,836.14x = 10,937,083,400.01 - Step 5: Solve for x
x = 10,937,083,400.01/119,836.14 - Step 6: Final answer
x = 91,266.99
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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.