Finding the Fourth Proportional to 112,861.41, 155,750.49 and 61,879.02
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Solution
The fourth proportional to 112,861.41, 155,750.49 and 61,879.02 is: 85,394.00
Step by Step Solution
- Step 1: Write the proportion equation
112,861.41 : 155,750.49 = 61,879.02 : x - Step 2: Convert to fraction form
112,861.41/155,750.49 = 61,879.02/x - Step 3: Cross multiply
112,861.41x = 155,750.49 × 61,879.02 - Step 4: Simplify right side
112,861.41x = 9,637,687,685.72 - Step 5: Solve for x
x = 9,637,687,685.72/112,861.41 - Step 6: Final answer
x = 85,394.00
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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.