Finding the Fourth Proportional to 156,949.70, 235,078.95 and 136,213.70
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Solution
The fourth proportional to 156,949.70, 235,078.95 and 136,213.70 is: 204,020.61
Step by Step Solution
- Step 1: Write the proportion equation
156,949.70 : 235,078.95 = 136,213.70 : x - Step 2: Convert to fraction form
156,949.70/235,078.95 = 136,213.70/x - Step 3: Cross multiply
156,949.70x = 235,078.95 × 136,213.70 - Step 4: Simplify right side
156,949.70x = 32,020,973,571.62 - Step 5: Solve for x
x = 32,020,973,571.62/156,949.70 - Step 6: Final answer
x = 204,020.61
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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.