Finding the Fourth Proportional to 107,930.75, 148,944.44 and 63,218.75
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Solution
The fourth proportional to 107,930.75, 148,944.44 and 63,218.75 is: 87,241.88
Step by Step Solution
- Step 1: Write the proportion equation
107,930.75 : 148,944.44 = 63,218.75 : x - Step 2: Convert to fraction form
107,930.75/148,944.44 = 63,218.75/x - Step 3: Cross multiply
107,930.75x = 148,944.44 × 63,218.75 - Step 4: Simplify right side
107,930.75x = 9,416,081,316.25 - Step 5: Solve for x
x = 9,416,081,316.25/107,930.75 - Step 6: Final answer
x = 87,241.88
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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.