Finding the Fourth Proportional to 135,486.76, 186,968.26 and 74,232.52
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Solution
The fourth proportional to 135,486.76, 186,968.26 and 74,232.52 is: 102,438.98
Step by Step Solution
- Step 1: Write the proportion equation
135,486.76 : 186,968.26 = 74,232.52 : x - Step 2: Convert to fraction form
135,486.76/186,968.26 = 74,232.52/x - Step 3: Cross multiply
135,486.76x = 186,968.26 × 74,232.52 - Step 4: Simplify right side
135,486.76x = 13,879,125,099.82 - Step 5: Solve for x
x = 13,879,125,099.82/135,486.76 - Step 6: Final answer
x = 102,438.98
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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.