Finding the Fourth Proportional to 117,976.19, 176,805.86 and 57,912.96
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Solution
The fourth proportional to 117,976.19, 176,805.86 and 57,912.96 is: 86,791.67
Step by Step Solution
- Step 1: Write the proportion equation
117,976.19 : 176,805.86 = 57,912.96 : x - Step 2: Convert to fraction form
117,976.19/176,805.86 = 57,912.96/x - Step 3: Cross multiply
117,976.19x = 176,805.86 × 57,912.96 - Step 4: Simplify right side
117,976.19x = 10,239,350,408.38 - Step 5: Solve for x
x = 10,239,350,408.38/117,976.19 - Step 6: Final answer
x = 86,791.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.