Finding the Fourth Proportional to 115,583.81, 173,310.08 and 68,869.49
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Solution
The fourth proportional to 115,583.81, 173,310.08 and 68,869.49 is: 103,265.12
Step by Step Solution
- Step 1: Write the proportion equation
115,583.81 : 173,310.08 = 68,869.49 : x - Step 2: Convert to fraction form
115,583.81/173,310.08 = 68,869.49/x - Step 3: Cross multiply
115,583.81x = 173,310.08 × 68,869.49 - Step 4: Simplify right side
115,583.81x = 11,935,775,610.56 - Step 5: Solve for x
x = 11,935,775,610.56/115,583.81 - Step 6: Final answer
x = 103,265.12
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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.