Finding the Fourth Proportional to 71,493.99, 107,240.28 and 18,186.12
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Solution
The fourth proportional to 71,493.99, 107,240.28 and 18,186.12 is: 27,279.00
Step by Step Solution
- Step 1: Write the proportion equation
71,493.99 : 107,240.28 = 18,186.12 : x - Step 2: Convert to fraction form
71,493.99/107,240.28 = 18,186.12/x - Step 3: Cross multiply
71,493.99x = 107,240.28 × 18,186.12 - Step 4: Simplify right side
71,493.99x = 1,950,284,600.91 - Step 5: Solve for x
x = 1,950,284,600.91/71,493.99 - Step 6: Final answer
x = 27,279.00
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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.