Finding the Fourth Proportional to 128,583.92, 177,327.42 and 88,226.48
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Solution
The fourth proportional to 128,583.92, 177,327.42 and 88,226.48 is: 121,671.31
Step by Step Solution
- Step 1: Write the proportion equation
128,583.92 : 177,327.42 = 88,226.48 : x - Step 2: Convert to fraction form
128,583.92/177,327.42 = 88,226.48/x - Step 3: Cross multiply
128,583.92x = 177,327.42 × 88,226.48 - Step 4: Simplify right side
128,583.92x = 15,644,974,074.08 - Step 5: Solve for x
x = 15,644,974,074.08/128,583.92 - Step 6: Final answer
x = 121,671.31
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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.