Finding the Fourth Proportional to 134.91, 202.35 and 61.74
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Solution
The fourth proportional to 134.91, 202.35 and 61.74 is: 92.60
Step by Step Solution
- Step 1: Write the proportion equation
134.91 : 202.35 = 61.74 : x - Step 2: Convert to fraction form
134.91/202.35 = 61.74/x - Step 3: Cross multiply
134.91x = 202.35 × 61.74 - Step 4: Simplify right side
134.91x = 12,492.99 - Step 5: Solve for x
x = 12,492.99/134.91 - Step 6: Final answer
x = 92.60
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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.