Finding the Fourth Proportional to 135,394.25, 186,849.92 and 74,964.90
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Solution
The fourth proportional to 135,394.25, 186,849.92 and 74,964.90 is: 103,454.80
Step by Step Solution
- Step 1: Write the proportion equation
135,394.25 : 186,849.92 = 74,964.90 : x - Step 2: Convert to fraction form
135,394.25/186,849.92 = 74,964.90/x - Step 3: Cross multiply
135,394.25x = 186,849.92 × 74,964.90 - Step 4: Simplify right side
135,394.25x = 14,007,185,192.98 - Step 5: Solve for x
x = 14,007,185,192.98/135,394.25 - Step 6: Final answer
x = 103,454.80
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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.