Finding the Fourth Proportional to 140,836.68, 194,354.70 and 77,174.48
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Solution
The fourth proportional to 140,836.68, 194,354.70 and 77,174.48 is: 106,500.82
Step by Step Solution
- Step 1: Write the proportion equation
140,836.68 : 194,354.70 = 77,174.48 : x - Step 2: Convert to fraction form
140,836.68/194,354.70 = 77,174.48/x - Step 3: Cross multiply
140,836.68x = 194,354.70 × 77,174.48 - Step 4: Simplify right side
140,836.68x = 14,999,222,229.23 - Step 5: Solve for x
x = 14,999,222,229.23/140,836.68 - Step 6: Final answer
x = 106,500.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.