Finding the Fourth Proportional to 135,275.20, 202,912.80 and 56,363.20
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Solution
The fourth proportional to 135,275.20, 202,912.80 and 56,363.20 is: 84,544.80
Step by Step Solution
- Step 1: Write the proportion equation
135,275.20 : 202,912.80 = 56,363.20 : x - Step 2: Convert to fraction form
135,275.20/202,912.80 = 56,363.20/x - Step 3: Cross multiply
135,275.20x = 202,912.80 × 56,363.20 - Step 4: Simplify right side
135,275.20x = 11,436,814,728.96 - Step 5: Solve for x
x = 11,436,814,728.96/135,275.20 - Step 6: Final answer
x = 84,544.80
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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.