Finding the Fourth Proportional to 131.31, 196.99 and 73.53
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Solution
The fourth proportional to 131.31, 196.99 and 73.53 is: 110.31
Step by Step Solution
- Step 1: Write the proportion equation
131.31 : 196.99 = 73.53 : x - Step 2: Convert to fraction form
131.31/196.99 = 73.53/x - Step 3: Cross multiply
131.31x = 196.99 × 73.53 - Step 4: Simplify right side
131.31x = 14,484.49 - Step 5: Solve for x
x = 14,484.49/131.31 - Step 6: Final answer
x = 110.31
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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.