Finding the Fourth Proportional to 135,067.10, 186,403.82 and 74,649.53
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Solution
The fourth proportional to 135,067.10, 186,403.82 and 74,649.53 is: 103,022.56
Step by Step Solution
- Step 1: Write the proportion equation
135,067.10 : 186,403.82 = 74,649.53 : x - Step 2: Convert to fraction form
135,067.10/186,403.82 = 74,649.53/x - Step 3: Cross multiply
135,067.10x = 186,403.82 × 74,649.53 - Step 4: Simplify right side
135,067.10x = 13,914,957,645.97 - Step 5: Solve for x
x = 13,914,957,645.97/135,067.10 - Step 6: Final answer
x = 103,022.56
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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.