Finding the Fourth Proportional to 135.84, 203.90 and 84.58
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Solution
The fourth proportional to 135.84, 203.90 and 84.58 is: 126.96
Step by Step Solution
- Step 1: Write the proportion equation
135.84 : 203.90 = 84.58 : x - Step 2: Convert to fraction form
135.84/203.90 = 84.58/x - Step 3: Cross multiply
135.84x = 203.90 × 84.58 - Step 4: Simplify right side
135.84x = 17,246.08 - Step 5: Solve for x
x = 17,246.08/135.84 - Step 6: Final answer
x = 126.96
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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.