Finding the Fourth Proportional to 149,601.26, 206,431.17 and 91,487.21
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Solution
The fourth proportional to 149,601.26, 206,431.17 and 91,487.21 is: 126,240.99
Step by Step Solution
- Step 1: Write the proportion equation
149,601.26 : 206,431.17 = 91,487.21 : x - Step 2: Convert to fraction form
149,601.26/206,431.17 = 91,487.21/x - Step 3: Cross multiply
149,601.26x = 206,431.17 × 91,487.21 - Step 4: Simplify right side
149,601.26x = 18,885,810,768.18 - Step 5: Solve for x
x = 18,885,810,768.18/149,601.26 - Step 6: Final answer
x = 126,240.99
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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.