Finding the Fourth Proportional to 135,102.38, 202,646.26 and 68,540.78
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Solution
The fourth proportional to 135,102.38, 202,646.26 and 68,540.78 is: 102,807.46
Step by Step Solution
- Step 1: Write the proportion equation
135,102.38 : 202,646.26 = 68,540.78 : x - Step 2: Convert to fraction form
135,102.38/202,646.26 = 68,540.78/x - Step 3: Cross multiply
135,102.38x = 202,646.26 × 68,540.78 - Step 4: Simplify right side
135,102.38x = 13,889,531,648.86 - Step 5: Solve for x
x = 13,889,531,648.86/135,102.38 - Step 6: Final answer
x = 102,807.46
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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.