Finding the Fourth Proportional to 135,902.56, 203,927.16 and 79,852.18
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Solution
The fourth proportional to 135,902.56, 203,927.16 and 79,852.18 is: 119,821.35
Step by Step Solution
- Step 1: Write the proportion equation
135,902.56 : 203,927.16 = 79,852.18 : x - Step 2: Convert to fraction form
135,902.56/203,927.16 = 79,852.18/x - Step 3: Cross multiply
135,902.56x = 203,927.16 × 79,852.18 - Step 4: Simplify right side
135,902.56x = 16,284,028,287.21 - Step 5: Solve for x
x = 16,284,028,287.21/135,902.56 - Step 6: Final answer
x = 119,821.35
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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.