Finding the Fourth Proportional to 135.42, 202.91 and 104.87
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Solution
The fourth proportional to 135.42, 202.91 and 104.87 is: 157.12
Step by Step Solution
- Step 1: Write the proportion equation
135.42 : 202.91 = 104.87 : x - Step 2: Convert to fraction form
135.42/202.91 = 104.87/x - Step 3: Cross multiply
135.42x = 202.91 × 104.87 - Step 4: Simplify right side
135.42x = 21,277.63 - Step 5: Solve for x
x = 21,277.63/135.42 - Step 6: Final answer
x = 157.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.