Finding the Fourth Proportional to 131,790.87, 197,496.99 and 74,909.97
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Solution
The fourth proportional to 131,790.87, 197,496.99 and 74,909.97 is: 112,257.35
Step by Step Solution
- Step 1: Write the proportion equation
131,790.87 : 197,496.99 = 74,909.97 : x - Step 2: Convert to fraction form
131,790.87/197,496.99 = 74,909.97/x - Step 3: Cross multiply
131,790.87x = 197,496.99 × 74,909.97 - Step 4: Simplify right side
131,790.87x = 14,794,493,595.99 - Step 5: Solve for x
x = 14,794,493,595.99/131,790.87 - Step 6: Final answer
x = 112,257.35
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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.