Finding the Fourth Proportional to 135,717.70, 203,479.35 and 56,791.30
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Solution
The fourth proportional to 135,717.70, 203,479.35 and 56,791.30 is: 85,146.28
Step by Step Solution
- Step 1: Write the proportion equation
135,717.70 : 203,479.35 = 56,791.30 : x - Step 2: Convert to fraction form
135,717.70/203,479.35 = 56,791.30/x - Step 3: Cross multiply
135,717.70x = 203,479.35 × 56,791.30 - Step 4: Simplify right side
135,717.70x = 11,555,856,809.66 - Step 5: Solve for x
x = 11,555,856,809.66/135,717.70 - Step 6: Final answer
x = 85,146.28
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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.