Finding the Fourth Proportional to 135,651.70, 203,477.55 and 129,892.60
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Solution
The fourth proportional to 135,651.70, 203,477.55 and 129,892.60 is: 194,838.90
Step by Step Solution
- Step 1: Write the proportion equation
135,651.70 : 203,477.55 = 129,892.60 : x - Step 2: Convert to fraction form
135,651.70/203,477.55 = 129,892.60/x - Step 3: Cross multiply
135,651.70x = 203,477.55 × 129,892.60 - Step 4: Simplify right side
135,651.70x = 26,430,228,011.13 - Step 5: Solve for x
x = 26,430,228,011.13/135,651.70 - Step 6: Final answer
x = 194,838.90
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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.