Finding the Fourth Proportional to 136,147.86, 187,900.43 and 82,422.99
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Solution
The fourth proportional to 136,147.86, 187,900.43 and 82,422.99 is: 113,753.64
Step by Step Solution
- Step 1: Write the proportion equation
136,147.86 : 187,900.43 = 82,422.99 : x - Step 2: Convert to fraction form
136,147.86/187,900.43 = 82,422.99/x - Step 3: Cross multiply
136,147.86x = 187,900.43 × 82,422.99 - Step 4: Simplify right side
136,147.86x = 15,487,314,850.77 - Step 5: Solve for x
x = 15,487,314,850.77/136,147.86 - Step 6: Final answer
x = 113,753.64
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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.