Finding the Fourth Proportional to 135,731.70, 203,670.45 and 56,853.90
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Solution
The fourth proportional to 135,731.70, 203,670.45 and 56,853.90 is: 85,311.39
Step by Step Solution
- Step 1: Write the proportion equation
135,731.70 : 203,670.45 = 56,853.90 : x - Step 2: Convert to fraction form
135,731.70/203,670.45 = 56,853.90/x - Step 3: Cross multiply
135,731.70x = 203,670.45 × 56,853.90 - Step 4: Simplify right side
135,731.70x = 11,579,459,397.26 - Step 5: Solve for x
x = 11,579,459,397.26/135,731.70 - Step 6: Final answer
x = 85,311.39
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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.