Finding the Fourth Proportional to 135.76, 203.66 and 58.74
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Solution
The fourth proportional to 135.76, 203.66 and 58.74 is: 88.12
Step by Step Solution
- Step 1: Write the proportion equation
135.76 : 203.66 = 58.74 : x - Step 2: Convert to fraction form
135.76/203.66 = 58.74/x - Step 3: Cross multiply
135.76x = 203.66 × 58.74 - Step 4: Simplify right side
135.76x = 11,962.99 - Step 5: Solve for x
x = 11,962.99/135.76 - Step 6: Final answer
x = 88.12
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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.