Finding the Fourth Proportional to 135,021.75, 202,394.39 and 56,181.75
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Solution
The fourth proportional to 135,021.75, 202,394.39 and 56,181.75 is: 84,215.10
Step by Step Solution
- Step 1: Write the proportion equation
135,021.75 : 202,394.39 = 56,181.75 : x - Step 2: Convert to fraction form
135,021.75/202,394.39 = 56,181.75/x - Step 3: Cross multiply
135,021.75x = 202,394.39 × 56,181.75 - Step 4: Simplify right side
135,021.75x = 11,370,870,739.47 - Step 5: Solve for x
x = 11,370,870,739.47/135,021.75 - Step 6: Final answer
x = 84,215.10
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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.