Finding the Fourth Proportional to 115,193.09, 172,763.70 and 41,321.09
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Solution
The fourth proportional to 115,193.09, 172,763.70 and 41,321.09 is: 61,972.33
Step by Step Solution
- Step 1: Write the proportion equation
115,193.09 : 172,763.70 = 41,321.09 : x - Step 2: Convert to fraction form
115,193.09/172,763.70 = 41,321.09/x - Step 3: Cross multiply
115,193.09x = 172,763.70 × 41,321.09 - Step 4: Simplify right side
115,193.09x = 7,138,783,532.61 - Step 5: Solve for x
x = 7,138,783,532.61/115,193.09 - Step 6: Final answer
x = 61,972.33
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1.5x scale
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.