Finding the Fourth Proportional to 135,235.38, 202,612.49 and 115,311.81
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Solution
The fourth proportional to 135,235.38, 202,612.49 and 115,311.81 is: 172,762.58
Step by Step Solution
- Step 1: Write the proportion equation
135,235.38 : 202,612.49 = 115,311.81 : x - Step 2: Convert to fraction form
135,235.38/202,612.49 = 115,311.81/x - Step 3: Cross multiply
135,235.38x = 202,612.49 × 115,311.81 - Step 4: Simplify right side
135,235.38x = 23,363,611,937.44 - Step 5: Solve for x
x = 23,363,611,937.44/135,235.38 - Step 6: Final answer
x = 172,762.58
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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.