Finding the Fourth Proportional to 145.68, 201 and 87.44
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Solution
The fourth proportional to 145.68, 201 and 87.44 is: 120.64
Step by Step Solution
- Step 1: Write the proportion equation
145.68 : 201 = 87.44 : x - Step 2: Convert to fraction form
145.68/201 = 87.44/x - Step 3: Cross multiply
145.68x = 201 × 87.44 - Step 4: Simplify right side
145.68x = 17,575.44 - Step 5: Solve for x
x = 17,575.44/145.68 - Step 6: Final answer
x = 120.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.