Finding the Fourth Proportional to 135,351.10, 202,912.49 and 85,320.95
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Solution
The fourth proportional to 135,351.10, 202,912.49 and 85,320.95 is: 127,909.46
Step by Step Solution
- Step 1: Write the proportion equation
135,351.10 : 202,912.49 = 85,320.95 : x - Step 2: Convert to fraction form
135,351.10/202,912.49 = 85,320.95/x - Step 3: Cross multiply
135,351.10x = 202,912.49 × 85,320.95 - Step 4: Simplify right side
135,351.10x = 17,312,685,612.41 - Step 5: Solve for x
x = 17,312,685,612.41/135,351.10 - Step 6: Final answer
x = 127,909.46
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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.