Finding the Fourth Proportional to 124,651.94, 186,765.21 and 68,539.05
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Solution
The fourth proportional to 124,651.94, 186,765.21 and 68,539.05 is: 102,691.63
Step by Step Solution
- Step 1: Write the proportion equation
124,651.94 : 186,765.21 = 68,539.05 : x - Step 2: Convert to fraction form
124,651.94/186,765.21 = 68,539.05/x - Step 3: Cross multiply
124,651.94x = 186,765.21 × 68,539.05 - Step 4: Simplify right side
124,651.94x = 12,800,710,066.45 - Step 5: Solve for x
x = 12,800,710,066.45/124,651.94 - Step 6: Final answer
x = 102,691.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.