Finding the Fourth Proportional to 95.94, 143.64 and 72.99
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Solution
The fourth proportional to 95.94, 143.64 and 72.99 is: 109.28
Step by Step Solution
- Step 1: Write the proportion equation
95.94 : 143.64 = 72.99 : x - Step 2: Convert to fraction form
95.94/143.64 = 72.99/x - Step 3: Cross multiply
95.94x = 143.64 × 72.99 - Step 4: Simplify right side
95.94x = 10,484.28 - Step 5: Solve for x
x = 10,484.28/95.94 - Step 6: Final answer
x = 109.28
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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.