Finding the Fourth Proportional to 131,956.40, 197,934.60 and 32,115.80
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Solution
The fourth proportional to 131,956.40, 197,934.60 and 32,115.80 is: 48,173.70
Step by Step Solution
- Step 1: Write the proportion equation
131,956.40 : 197,934.60 = 32,115.80 : x - Step 2: Convert to fraction form
131,956.40/197,934.60 = 32,115.80/x - Step 3: Cross multiply
131,956.40x = 197,934.60 × 32,115.80 - Step 4: Simplify right side
131,956.40x = 6,356,828,026.68 - Step 5: Solve for x
x = 6,356,828,026.68/131,956.40 - Step 6: Final answer
x = 48,173.70
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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.