Finding the Fourth Proportional to 102,093.19, 140,888.73 and 56,770.68
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Solution
The fourth proportional to 102,093.19, 140,888.73 and 56,770.68 is: 78,343.61
Step by Step Solution
- Step 1: Write the proportion equation
102,093.19 : 140,888.73 = 56,770.68 : x - Step 2: Convert to fraction form
102,093.19/140,888.73 = 56,770.68/x - Step 3: Cross multiply
102,093.19x = 140,888.73 × 56,770.68 - Step 4: Simplify right side
102,093.19x = 7,998,349,006.44 - Step 5: Solve for x
x = 7,998,349,006.44/102,093.19 - Step 6: Final answer
x = 78,343.61
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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.