Finding the Fourth Proportional to 120,293.43, 165,891.36 and 89,733.99
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Solution
The fourth proportional to 120,293.43, 165,891.36 and 89,733.99 is: 123,748.18
Step by Step Solution
- Step 1: Write the proportion equation
120,293.43 : 165,891.36 = 89,733.99 : x - Step 2: Convert to fraction form
120,293.43/165,891.36 = 89,733.99/x - Step 3: Cross multiply
120,293.43x = 165,891.36 × 89,733.99 - Step 4: Simplify right side
120,293.43x = 14,886,093,190.66 - Step 5: Solve for x
x = 14,886,093,190.66/120,293.43 - Step 6: Final answer
x = 123,748.18
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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.