Finding the Fourth Proportional to 100,214.94, 138,296.67 and 54,893.68
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Solution
The fourth proportional to 100,214.94, 138,296.67 and 54,893.68 is: 75,753.31
Step by Step Solution
- Step 1: Write the proportion equation
100,214.94 : 138,296.67 = 54,893.68 : x - Step 2: Convert to fraction form
100,214.94/138,296.67 = 54,893.68/x - Step 3: Cross multiply
100,214.94x = 138,296.67 × 54,893.68 - Step 4: Simplify right side
100,214.94x = 7,591,613,148.05 - Step 5: Solve for x
x = 7,591,613,148.05/100,214.94 - Step 6: Final answer
x = 75,753.31
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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.