Finding the Fourth Proportional to 135,090.40, 202,750.80 and 60,325.60
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Solution
The fourth proportional to 135,090.40, 202,750.80 and 60,325.60 is: 90,539.84
Step by Step Solution
- Step 1: Write the proportion equation
135,090.40 : 202,750.80 = 60,325.60 : x - Step 2: Convert to fraction form
135,090.40/202,750.80 = 60,325.60/x - Step 3: Cross multiply
135,090.40x = 202,750.80 × 60,325.60 - Step 4: Simplify right side
135,090.40x = 12,231,063,660.48 - Step 5: Solve for x
x = 12,231,063,660.48/135,090.40 - Step 6: Final answer
x = 90,539.84
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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.