Finding the Fourth Proportional to 137,342.99, 189,523.94 and 76,087.08
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Solution
The fourth proportional to 137,342.99, 189,523.94 and 76,087.08 is: 104,994.97
Step by Step Solution
- Step 1: Write the proportion equation
137,342.99 : 189,523.94 = 76,087.08 : x - Step 2: Convert to fraction form
137,342.99/189,523.94 = 76,087.08/x - Step 3: Cross multiply
137,342.99x = 189,523.94 × 76,087.08 - Step 4: Simplify right side
137,342.99x = 14,420,322,804.26 - Step 5: Solve for x
x = 14,420,322,804.26/137,342.99 - Step 6: Final answer
x = 104,994.97
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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.