Finding the Fourth Proportional to 120,770.67, 180,880.08 and 57,635.13
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Solution
The fourth proportional to 120,770.67, 180,880.08 and 57,635.13 is: 86,321.02
Step by Step Solution
- Step 1: Write the proportion equation
120,770.67 : 180,880.08 = 57,635.13 : x - Step 2: Convert to fraction form
120,770.67/180,880.08 = 57,635.13/x - Step 3: Cross multiply
120,770.67x = 180,880.08 × 57,635.13 - Step 4: Simplify right side
120,770.67x = 10,425,046,925.21 - Step 5: Solve for x
x = 10,425,046,925.21/120,770.67 - Step 6: Final answer
x = 86,321.02
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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.