Finding the Fourth Proportional to 135,732.48, 203,611.68 and 42,213.12
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Solution
The fourth proportional to 135,732.48, 203,611.68 and 42,213.12 is: 63,323.71
Step by Step Solution
- Step 1: Write the proportion equation
135,732.48 : 203,611.68 = 42,213.12 : x - Step 2: Convert to fraction form
135,732.48/203,611.68 = 42,213.12/x - Step 3: Cross multiply
135,732.48x = 203,611.68 × 42,213.12 - Step 4: Simplify right side
135,732.48x = 8,595,084,281.24 - Step 5: Solve for x
x = 8,595,084,281.24/135,732.48 - Step 6: Final answer
x = 63,323.71
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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.