Finding the Fourth Proportional to 107,515.38, 148,375.02 and 59,120.99
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Solution
The fourth proportional to 107,515.38, 148,375.02 and 59,120.99 is: 81,589.05
Step by Step Solution
- Step 1: Write the proportion equation
107,515.38 : 148,375.02 = 59,120.99 : x - Step 2: Convert to fraction form
107,515.38/148,375.02 = 59,120.99/x - Step 3: Cross multiply
107,515.38x = 148,375.02 × 59,120.99 - Step 4: Simplify right side
107,515.38x = 8,772,077,331.79 - Step 5: Solve for x
x = 8,772,077,331.79/107,515.38 - Step 6: Final answer
x = 81,589.05
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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.