Finding the Fourth Proportional to 107,738.09, 161,532.18 and 47,734.01
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Solution
The fourth proportional to 107,738.09, 161,532.18 and 47,734.01 is: 71,567.80
Step by Step Solution
- Step 1: Write the proportion equation
107,738.09 : 161,532.18 = 47,734.01 : x - Step 2: Convert to fraction form
107,738.09/161,532.18 = 47,734.01/x - Step 3: Cross multiply
107,738.09x = 161,532.18 × 47,734.01 - Step 4: Simplify right side
107,738.09x = 7,710,577,887.78 - Step 5: Solve for x
x = 7,710,577,887.78/107,738.09 - Step 6: Final answer
x = 71,567.80
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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.