Finding the Fourth Proportional to 129,124.17, 193,678.97 and 40,367.21
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Solution
The fourth proportional to 129,124.17, 193,678.97 and 40,367.21 is: 60,548.53
Step by Step Solution
- Step 1: Write the proportion equation
129,124.17 : 193,678.97 = 40,367.21 : x - Step 2: Convert to fraction form
129,124.17/193,678.97 = 40,367.21/x - Step 3: Cross multiply
129,124.17x = 193,678.97 × 40,367.21 - Step 4: Simplify right side
129,124.17x = 7,818,278,484.34 - Step 5: Solve for x
x = 7,818,278,484.34/129,124.17 - Step 6: Final answer
x = 60,548.53
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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.