Finding the Fourth Proportional to 102,431.67, 141,356.76 and 59,414.05
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Solution
The fourth proportional to 102,431.67, 141,356.76 and 59,414.05 is: 81,992.00
Step by Step Solution
- Step 1: Write the proportion equation
102,431.67 : 141,356.76 = 59,414.05 : x - Step 2: Convert to fraction form
102,431.67/141,356.76 = 59,414.05/x - Step 3: Cross multiply
102,431.67x = 141,356.76 × 59,414.05 - Step 4: Simplify right side
102,431.67x = 8,398,577,560.37 - Step 5: Solve for x
x = 8,398,577,560.37/102,431.67 - Step 6: Final answer
x = 81,992.00
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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.