Finding the Fourth Proportional to 115,986.12, 174,006.81 and 41,112.80
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Solution
The fourth proportional to 115,986.12, 174,006.81 and 41,112.80 is: 61,678.99
Step by Step Solution
- Step 1: Write the proportion equation
115,986.12 : 174,006.81 = 41,112.80 : x - Step 2: Convert to fraction form
115,986.12/174,006.81 = 41,112.80/x - Step 3: Cross multiply
115,986.12x = 174,006.81 × 41,112.80 - Step 4: Simplify right side
115,986.12x = 7,153,907,178.17 - Step 5: Solve for x
x = 7,153,907,178.17/115,986.12 - Step 6: Final answer
x = 61,678.99
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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.