Finding the Fourth Proportional to 135,220.71, 202,664.92 and 75,931.75
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Solution
The fourth proportional to 135,220.71, 202,664.92 and 75,931.75 is: 113,804.33
Step by Step Solution
- Step 1: Write the proportion equation
135,220.71 : 202,664.92 = 75,931.75 : x - Step 2: Convert to fraction form
135,220.71/202,664.92 = 75,931.75/x - Step 3: Cross multiply
135,220.71x = 202,664.92 × 75,931.75 - Step 4: Simplify right side
135,220.71x = 15,388,702,039.21 - Step 5: Solve for x
x = 15,388,702,039.21/135,220.71 - Step 6: Final answer
x = 113,804.33
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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.