Finding the Fourth Proportional to 131,811.40, 197,717.10 and 124,553.80
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Solution
The fourth proportional to 131,811.40, 197,717.10 and 124,553.80 is: 186,830.70
Step by Step Solution
- Step 1: Write the proportion equation
131,811.40 : 197,717.10 = 124,553.80 : x - Step 2: Convert to fraction form
131,811.40/197,717.10 = 124,553.80/x - Step 3: Cross multiply
131,811.40x = 197,717.10 × 124,553.80 - Step 4: Simplify right side
131,811.40x = 24,626,416,129.98 - Step 5: Solve for x
x = 24,626,416,129.98/131,811.40 - Step 6: Final answer
x = 186,830.70
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1.5x scale
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.