Finding the Fourth Proportional to 115,083.76, 172,633.84 and 40,195.42
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Solution
The fourth proportional to 115,083.76, 172,633.84 and 40,195.42 is: 60,295.99
Step by Step Solution
- Step 1: Write the proportion equation
115,083.76 : 172,633.84 = 40,195.42 : x - Step 2: Convert to fraction form
115,083.76/172,633.84 = 40,195.42/x - Step 3: Cross multiply
115,083.76x = 172,633.84 × 40,195.42 - Step 4: Simplify right side
115,083.76x = 6,939,089,705.01 - Step 5: Solve for x
x = 6,939,089,705.01/115,083.76 - Step 6: Final answer
x = 60,295.99
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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.