Finding the Fourth Proportional to 128,584.92, 177,328.80 and 88,227.48
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Solution
The fourth proportional to 128,584.92, 177,328.80 and 88,227.48 is: 121,672.69
Step by Step Solution
- Step 1: Write the proportion equation
128,584.92 : 177,328.80 = 88,227.48 : x - Step 2: Convert to fraction form
128,584.92/177,328.80 = 88,227.48/x - Step 3: Cross multiply
128,584.92x = 177,328.80 × 88,227.48 - Step 4: Simplify right side
128,584.92x = 15,645,273,155.42 - Step 5: Solve for x
x = 15,645,273,155.42/128,584.92 - Step 6: Final answer
x = 121,672.69
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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.