Finding the Fourth Proportional to 128,857.83, 193,240.43 and 44,595.12
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Solution
The fourth proportional to 128,857.83, 193,240.43 and 44,595.12 is: 66,876.65
Step by Step Solution
- Step 1: Write the proportion equation
128,857.83 : 193,240.43 = 44,595.12 : x - Step 2: Convert to fraction form
128,857.83/193,240.43 = 44,595.12/x - Step 3: Cross multiply
128,857.83x = 193,240.43 × 44,595.12 - Step 4: Simplify right side
128,857.83x = 8,617,580,164.70 - Step 5: Solve for x
x = 8,617,580,164.70/128,857.83 - Step 6: Final answer
x = 66,876.65
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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.