Finding the Fourth Proportional to 91,205.12, 136,806.96 and 49,104.92
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Solution
The fourth proportional to 91,205.12, 136,806.96 and 49,104.92 is: 73,656.99
Step by Step Solution
- Step 1: Write the proportion equation
91,205.12 : 136,806.96 = 49,104.92 : x - Step 2: Convert to fraction form
91,205.12/136,806.96 = 49,104.92/x - Step 3: Cross multiply
91,205.12x = 136,806.96 × 49,104.92 - Step 4: Simplify right side
91,205.12x = 6,717,894,826.24 - Step 5: Solve for x
x = 6,717,894,826.24/91,205.12 - Step 6: Final answer
x = 73,656.99
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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.