Finding the Fourth Proportional to 135,261.60, 202,843.80 and 68,679.60
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Solution
The fourth proportional to 135,261.60, 202,843.80 and 68,679.60 is: 102,994.72
Step by Step Solution
- Step 1: Write the proportion equation
135,261.60 : 202,843.80 = 68,679.60 : x - Step 2: Convert to fraction form
135,261.60/202,843.80 = 68,679.60/x - Step 3: Cross multiply
135,261.60x = 202,843.80 × 68,679.60 - Step 4: Simplify right side
135,261.60x = 13,931,231,046.48 - Step 5: Solve for x
x = 13,931,231,046.48/135,261.60 - Step 6: Final answer
x = 102,994.72
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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.