Finding the Fourth Proportional to 88,277.80, 132,416.70 and 81,797.80
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Solution
The fourth proportional to 88,277.80, 132,416.70 and 81,797.80 is: 122,696.70
Step by Step Solution
- Step 1: Write the proportion equation
88,277.80 : 132,416.70 = 81,797.80 : x - Step 2: Convert to fraction form
88,277.80/132,416.70 = 81,797.80/x - Step 3: Cross multiply
88,277.80x = 132,416.70 × 81,797.80 - Step 4: Simplify right side
88,277.80x = 10,831,394,743.26 - Step 5: Solve for x
x = 10,831,394,743.26/88,277.80 - Step 6: Final answer
x = 122,696.70
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1.5x scale
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.