Finding the Fourth Proportional to 161,942.34, 223,310.84 and 139,357.92
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Solution
The fourth proportional to 161,942.34, 223,310.84 and 139,357.92 is: 192,167.99
Step by Step Solution
- Step 1: Write the proportion equation
161,942.34 : 223,310.84 = 139,357.92 : x - Step 2: Convert to fraction form
161,942.34/223,310.84 = 139,357.92/x - Step 3: Cross multiply
161,942.34x = 223,310.84 × 139,357.92 - Step 4: Simplify right side
161,942.34x = 31,120,134,175.85 - Step 5: Solve for x
x = 31,120,134,175.85/161,942.34 - Step 6: Final answer
x = 192,167.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.