Finding the Fourth Proportional to 135,361.40, 203,002.68 and 40,587.80
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Solution
The fourth proportional to 135,361.40, 203,002.68 and 40,587.80 is: 60,869.88
Step by Step Solution
- Step 1: Write the proportion equation
135,361.40 : 203,002.68 = 40,587.80 : x - Step 2: Convert to fraction form
135,361.40/203,002.68 = 40,587.80/x - Step 3: Cross multiply
135,361.40x = 203,002.68 × 40,587.80 - Step 4: Simplify right side
135,361.40x = 8,239,432,175.30 - Step 5: Solve for x
x = 8,239,432,175.30/135,361.40 - Step 6: Final answer
x = 60,869.88
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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.