Finding the Fourth Proportional to 128,761.70, 193,134.08 and 44,502.26
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Solution
The fourth proportional to 128,761.70, 193,134.08 and 44,502.26 is: 66,750.46
Step by Step Solution
- Step 1: Write the proportion equation
128,761.70 : 193,134.08 = 44,502.26 : x - Step 2: Convert to fraction form
128,761.70/193,134.08 = 44,502.26/x - Step 3: Cross multiply
128,761.70x = 193,134.08 × 44,502.26 - Step 4: Simplify right side
128,761.70x = 8,594,903,043.02 - Step 5: Solve for x
x = 8,594,903,043.02/128,761.70 - Step 6: Final answer
x = 66,750.46
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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.