Finding the Fourth Proportional to 135,324.60, 202,986.90 and 56,412.60
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Solution
The fourth proportional to 135,324.60, 202,986.90 and 56,412.60 is: 84,618.90
Step by Step Solution
- Step 1: Write the proportion equation
135,324.60 : 202,986.90 = 56,412.60 : x - Step 2: Convert to fraction form
135,324.60/202,986.90 = 56,412.60/x - Step 3: Cross multiply
135,324.60x = 202,986.90 × 56,412.60 - Step 4: Simplify right side
135,324.60x = 11,451,018,794.94 - Step 5: Solve for x
x = 11,451,018,794.94/135,324.60 - Step 6: Final answer
x = 84,618.90
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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.