Finding the Fourth Proportional to 83,236.60, 125,125.55 and 66,776.70
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Solution
The fourth proportional to 83,236.60, 125,125.55 and 66,776.70 is: 100,382.18
Step by Step Solution
- Step 1: Write the proportion equation
83,236.60 : 125,125.55 = 66,776.70 : x - Step 2: Convert to fraction form
83,236.60/125,125.55 = 66,776.70/x - Step 3: Cross multiply
83,236.60x = 125,125.55 × 66,776.70 - Step 4: Simplify right side
83,236.60x = 8,355,471,481.63 - Step 5: Solve for x
x = 8,355,471,481.63/83,236.60 - Step 6: Final answer
x = 100,382.18
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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.