Finding the Fourth Proportional to 121,494.29, 182,302.91 and 81,968.34
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Solution
The fourth proportional to 121,494.29, 182,302.91 and 81,968.34 is: 122,993.99
Step by Step Solution
- Step 1: Write the proportion equation
121,494.29 : 182,302.91 = 81,968.34 : x - Step 2: Convert to fraction form
121,494.29/182,302.91 = 81,968.34/x - Step 3: Cross multiply
121,494.29x = 182,302.91 × 81,968.34 - Step 4: Simplify right side
121,494.29x = 14,943,066,500.03 - Step 5: Solve for x
x = 14,943,066,500.03/121,494.29 - Step 6: Final answer
x = 122,993.99
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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.