Finding the Fourth Proportional to 106,685.75, 160,129.07 and 54,132.95
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Solution
The fourth proportional to 106,685.75, 160,129.07 and 54,132.95 is: 81,250.39
Step by Step Solution
- Step 1: Write the proportion equation
106,685.75 : 160,129.07 = 54,132.95 : x - Step 2: Convert to fraction form
106,685.75/160,129.07 = 54,132.95/x - Step 3: Cross multiply
106,685.75x = 160,129.07 × 54,132.95 - Step 4: Simplify right side
106,685.75x = 8,668,257,868.55 - Step 5: Solve for x
x = 8,668,257,868.55/106,685.75 - Step 6: Final answer
x = 81,250.39
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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.