Finding the Fourth Proportional to 155,761.11, 214,950.15 and 84,141.09
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Solution
The fourth proportional to 155,761.11, 214,950.15 and 84,141.09 is: 116,114.61
Step by Step Solution
- Step 1: Write the proportion equation
155,761.11 : 214,950.15 = 84,141.09 : x - Step 2: Convert to fraction form
155,761.11/214,950.15 = 84,141.09/x - Step 3: Cross multiply
155,761.11x = 214,950.15 × 84,141.09 - Step 4: Simplify right side
155,761.11x = 18,086,139,916.66 - Step 5: Solve for x
x = 18,086,139,916.66/155,761.11 - Step 6: Final answer
x = 116,114.61
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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.