Finding the Fourth Proportional to 115,118.21, 172,668.87 and 36,254.99
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Solution
The fourth proportional to 115,118.21, 172,668.87 and 36,254.99 is: 54,379.82
Step by Step Solution
- Step 1: Write the proportion equation
115,118.21 : 172,668.87 = 36,254.99 : x - Step 2: Convert to fraction form
115,118.21/172,668.87 = 36,254.99/x - Step 3: Cross multiply
115,118.21x = 172,668.87 × 36,254.99 - Step 4: Simplify right side
115,118.21x = 6,260,107,291.82 - Step 5: Solve for x
x = 6,260,107,291.82/115,118.21 - Step 6: Final answer
x = 54,379.82
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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.