Finding the Fourth Proportional to 107,708.70, 161,595.45 and 57,812.70
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Solution
The fourth proportional to 107,708.70, 161,595.45 and 57,812.70 is: 86,736.44
Step by Step Solution
- Step 1: Write the proportion equation
107,708.70 : 161,595.45 = 57,812.70 : x - Step 2: Convert to fraction form
107,708.70/161,595.45 = 57,812.70/x - Step 3: Cross multiply
107,708.70x = 161,595.45 × 57,812.70 - Step 4: Simplify right side
107,708.70x = 9,342,269,272.22 - Step 5: Solve for x
x = 9,342,269,272.22/107,708.70 - Step 6: Final answer
x = 86,736.44
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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.