Finding the Fourth Proportional to 102,330.27, 141,226.11 and 57,015.63
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Solution
The fourth proportional to 102,330.27, 141,226.11 and 57,015.63 is: 78,687.33
Step by Step Solution
- Step 1: Write the proportion equation
102,330.27 : 141,226.11 = 57,015.63 : x - Step 2: Convert to fraction form
102,330.27/141,226.11 = 57,015.63/x - Step 3: Cross multiply
102,330.27x = 141,226.11 × 57,015.63 - Step 4: Simplify right side
102,330.27x = 8,052,095,634.10 - Step 5: Solve for x
x = 8,052,095,634.10/102,330.27 - Step 6: Final answer
x = 78,687.33
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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.