Finding the Fourth Proportional to 131,872.64, 197,840.08 and 43,125.80
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Solution
The fourth proportional to 131,872.64, 197,840.08 and 43,125.80 is: 64,698.88
Step by Step Solution
- Step 1: Write the proportion equation
131,872.64 : 197,840.08 = 43,125.80 : x - Step 2: Convert to fraction form
131,872.64/197,840.08 = 43,125.80/x - Step 3: Cross multiply
131,872.64x = 197,840.08 × 43,125.80 - Step 4: Simplify right side
131,872.64x = 8,532,011,722.06 - Step 5: Solve for x
x = 8,532,011,722.06/131,872.64 - Step 6: Final answer
x = 64,698.88
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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.