Finding the Fourth Proportional to 139,596.84, 209,396.36 and 39,756.88
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Solution
The fourth proportional to 139,596.84, 209,396.36 and 39,756.88 is: 59,635.63
Step by Step Solution
- Step 1: Write the proportion equation
139,596.84 : 209,396.36 = 39,756.88 : x - Step 2: Convert to fraction form
139,596.84/209,396.36 = 39,756.88/x - Step 3: Cross multiply
139,596.84x = 209,396.36 × 39,756.88 - Step 4: Simplify right side
139,596.84x = 8,324,945,956.96 - Step 5: Solve for x
x = 8,324,945,956.96/139,596.84 - Step 6: Final answer
x = 59,635.63
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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.