Finding the Fourth Proportional to 135,394.49, 186,850.23 and 74,965.13
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Solution
The fourth proportional to 135,394.49, 186,850.23 and 74,965.13 is: 103,455.12
Step by Step Solution
- Step 1: Write the proportion equation
135,394.49 : 186,850.23 = 74,965.13 : x - Step 2: Convert to fraction form
135,394.49/186,850.23 = 74,965.13/x - Step 3: Cross multiply
135,394.49x = 186,850.23 × 74,965.13 - Step 4: Simplify right side
135,394.49x = 14,007,252,249.61 - Step 5: Solve for x
x = 14,007,252,249.61/135,394.49 - Step 6: Final answer
x = 103,455.12
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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.