Finding the Fourth Proportional to 112,725.92, 155,563.50 and 61,737.68
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Solution
The fourth proportional to 112,725.92, 155,563.50 and 61,737.68 is: 85,198.95
Step by Step Solution
- Step 1: Write the proportion equation
112,725.92 : 155,563.50 = 61,737.68 : x - Step 2: Convert to fraction form
112,725.92/155,563.50 = 61,737.68/x - Step 3: Cross multiply
112,725.92x = 155,563.50 × 61,737.68 - Step 4: Simplify right side
112,725.92x = 9,604,129,582.68 - Step 5: Solve for x
x = 9,604,129,582.68/112,725.92 - Step 6: Final answer
x = 85,198.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.