Finding the Fourth Proportional to 131,729.16, 197,593.88 and 61,657.68
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Solution
The fourth proportional to 131,729.16, 197,593.88 and 61,657.68 is: 92,486.59
Step by Step Solution
- Step 1: Write the proportion equation
131,729.16 : 197,593.88 = 61,657.68 : x - Step 2: Convert to fraction form
131,729.16/197,593.88 = 61,657.68/x - Step 3: Cross multiply
131,729.16x = 197,593.88 × 61,657.68 - Step 4: Simplify right side
131,729.16x = 12,183,180,377.14 - Step 5: Solve for x
x = 12,183,180,377.14/131,729.16 - Step 6: Final answer
x = 92,486.59
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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.