Finding the Fourth Proportional to 129,188.14, 193,837.57 and 54,325.08
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Solution
The fourth proportional to 129,188.14, 193,837.57 and 54,325.08 is: 81,510.90
Step by Step Solution
- Step 1: Write the proportion equation
129,188.14 : 193,837.57 = 54,325.08 : x - Step 2: Convert to fraction form
129,188.14/193,837.57 = 54,325.08/x - Step 3: Cross multiply
129,188.14x = 193,837.57 × 54,325.08 - Step 4: Simplify right side
129,188.14x = 10,530,241,437.84 - Step 5: Solve for x
x = 10,530,241,437.84/129,188.14 - Step 6: Final answer
x = 81,510.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.