Finding the Fourth Proportional to 134,893.60, 202,291.80 and 68,311.60
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Solution
The fourth proportional to 134,893.60, 202,291.80 and 68,311.60 is: 102,442.79
Step by Step Solution
- Step 1: Write the proportion equation
134,893.60 : 202,291.80 = 68,311.60 : x - Step 2: Convert to fraction form
134,893.60/202,291.80 = 68,311.60/x - Step 3: Cross multiply
134,893.60x = 202,291.80 × 68,311.60 - Step 4: Simplify right side
134,893.60x = 13,818,876,524.88 - Step 5: Solve for x
x = 13,818,876,524.88/134,893.60 - Step 6: Final answer
x = 102,442.79
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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.