Finding the Fourth Proportional to 113,761.32, 170,503.64 and 80,490.99
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Solution
The fourth proportional to 113,761.32, 170,503.64 and 80,490.99 is: 120,638.60
Step by Step Solution
- Step 1: Write the proportion equation
113,761.32 : 170,503.64 = 80,490.99 : x - Step 2: Convert to fraction form
113,761.32/170,503.64 = 80,490.99/x - Step 3: Cross multiply
113,761.32x = 170,503.64 × 80,490.99 - Step 4: Simplify right side
113,761.32x = 13,724,006,379.75 - Step 5: Solve for x
x = 13,724,006,379.75/113,761.32 - Step 6: Final answer
x = 120,638.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.