Finding the Fourth Proportional to 128,725.74, 193,057.85 and 44,488.88
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Solution
The fourth proportional to 128,725.74, 193,057.85 and 44,488.88 is: 66,722.68
Step by Step Solution
- Step 1: Write the proportion equation
128,725.74 : 193,057.85 = 44,488.88 : x - Step 2: Convert to fraction form
128,725.74/193,057.85 = 44,488.88/x - Step 3: Cross multiply
128,725.74x = 193,057.85 × 44,488.88 - Step 4: Simplify right side
128,725.74x = 8,588,926,333.97 - Step 5: Solve for x
x = 8,588,926,333.97/128,725.74 - Step 6: Final answer
x = 66,722.68
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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.