Finding the Fourth Proportional to 117,750.09, 162,383.49 and 90,849.99
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Solution
The fourth proportional to 117,750.09, 162,383.49 and 90,849.99 is: 125,286.85
Step by Step Solution
- Step 1: Write the proportion equation
117,750.09 : 162,383.49 = 90,849.99 : x - Step 2: Convert to fraction form
117,750.09/162,383.49 = 90,849.99/x - Step 3: Cross multiply
117,750.09x = 162,383.49 × 90,849.99 - Step 4: Simplify right side
117,750.09x = 14,752,538,442.67 - Step 5: Solve for x
x = 14,752,538,442.67/117,750.09 - Step 6: Final answer
x = 125,286.85
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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.