Finding the Fourth Proportional to 80,186.00, 120,279.50 and 21,021.14
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Solution
The fourth proportional to 80,186.00, 120,279.50 and 21,021.14 is: 31,531.83
Step by Step Solution
- Step 1: Write the proportion equation
80,186.00 : 120,279.50 = 21,021.14 : x - Step 2: Convert to fraction form
80,186.00/120,279.50 = 21,021.14/x - Step 3: Cross multiply
80,186.00x = 120,279.50 × 21,021.14 - Step 4: Simplify right side
80,186.00x = 2,528,411,502.13 - Step 5: Solve for x
x = 2,528,411,502.13/80,186.00 - Step 6: Final answer
x = 31,531.83
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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.