Finding the Fourth Proportional to 127,371.15, 175,791.87 and 91,679.31
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Solution
The fourth proportional to 127,371.15, 175,791.87 and 91,679.31 is: 126,531.62
Step by Step Solution
- Step 1: Write the proportion equation
127,371.15 : 175,791.87 = 91,679.31 : x - Step 2: Convert to fraction form
127,371.15/175,791.87 = 91,679.31/x - Step 3: Cross multiply
127,371.15x = 175,791.87 × 91,679.31 - Step 4: Simplify right side
127,371.15x = 16,116,477,345.21 - Step 5: Solve for x
x = 16,116,477,345.21/127,371.15 - Step 6: Final answer
x = 126,531.62
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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.