Finding the Fourth Proportional to 135,736.80, 203,432.40 and 98,757.60
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Solution
The fourth proportional to 135,736.80, 203,432.40 and 98,757.60 is: 148,010.68
Step by Step Solution
- Step 1: Write the proportion equation
135,736.80 : 203,432.40 = 98,757.60 : x - Step 2: Convert to fraction form
135,736.80/203,432.40 = 98,757.60/x - Step 3: Cross multiply
135,736.80x = 203,432.40 × 98,757.60 - Step 4: Simplify right side
135,736.80x = 20,090,495,586.24 - Step 5: Solve for x
x = 20,090,495,586.24/135,736.80 - Step 6: Final answer
x = 148,010.68
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1.5x scale
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.