Finding the Fourth Proportional to 129,212.82, 193,725.68 and 40,418.19
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Solution
The fourth proportional to 129,212.82, 193,725.68 and 40,418.19 is: 60,598.02
Step by Step Solution
- Step 1: Write the proportion equation
129,212.82 : 193,725.68 = 40,418.19 : x - Step 2: Convert to fraction form
129,212.82/193,725.68 = 40,418.19/x - Step 3: Cross multiply
129,212.82x = 193,725.68 × 40,418.19 - Step 4: Simplify right side
129,212.82x = 7,830,041,140.03 - Step 5: Solve for x
x = 7,830,041,140.03/129,212.82 - Step 6: Final answer
x = 60,598.02
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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.