Finding the Fourth Proportional to 138,625.93, 207,951.99 and 38,786.14
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Solution
The fourth proportional to 138,625.93, 207,951.99 and 38,786.14 is: 58,182.87
Step by Step Solution
- Step 1: Write the proportion equation
138,625.93 : 207,951.99 = 38,786.14 : x - Step 2: Convert to fraction form
138,625.93/207,951.99 = 38,786.14/x - Step 3: Cross multiply
138,625.93x = 207,951.99 × 38,786.14 - Step 4: Simplify right side
138,625.93x = 8,065,654,997.42 - Step 5: Solve for x
x = 8,065,654,997.42/138,625.93 - Step 6: Final answer
x = 58,182.87
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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.