Finding the Fourth Proportional to 115,920.30, 173,740.05 and 49,220.40
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Solution
The fourth proportional to 115,920.30, 173,740.05 and 49,220.40 is: 73,770.99
Step by Step Solution
- Step 1: Write the proportion equation
115,920.30 : 173,740.05 = 49,220.40 : x - Step 2: Convert to fraction form
115,920.30/173,740.05 = 49,220.40/x - Step 3: Cross multiply
115,920.30x = 173,740.05 × 49,220.40 - Step 4: Simplify right side
115,920.30x = 8,551,554,757.02 - Step 5: Solve for x
x = 8,551,554,757.02/115,920.30 - Step 6: Final answer
x = 73,770.99
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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.