Finding the Fourth Proportional to 88,336.94, 132,985.97 and 80,489.95
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Solution
The fourth proportional to 88,336.94, 132,985.97 and 80,489.95 is: 121,172.80
Step by Step Solution
- Step 1: Write the proportion equation
88,336.94 : 132,985.97 = 80,489.95 : x - Step 2: Convert to fraction form
88,336.94/132,985.97 = 80,489.95/x - Step 3: Cross multiply
88,336.94x = 132,985.97 × 80,489.95 - Step 4: Simplify right side
88,336.94x = 10,704,034,076.00 - Step 5: Solve for x
x = 10,704,034,076.00/88,336.94 - Step 6: Final answer
x = 121,172.80
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.