Finding the Fourth Proportional to 115,178.99, 172,727.16 and 44,121.60
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Solution
The fourth proportional to 115,178.99, 172,727.16 and 44,121.60 is: 66,166.57
Step by Step Solution
- Step 1: Write the proportion equation
115,178.99 : 172,727.16 = 44,121.60 : x - Step 2: Convert to fraction form
115,178.99/172,727.16 = 44,121.60/x - Step 3: Cross multiply
115,178.99x = 172,727.16 × 44,121.60 - Step 4: Simplify right side
115,178.99x = 7,620,998,662.66 - Step 5: Solve for x
x = 7,620,998,662.66/115,178.99 - Step 6: Final answer
x = 66,166.57
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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.