Finding the Fourth Proportional to 135,522.20, 186,850.61 and 87,038.54
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Solution
The fourth proportional to 135,522.20, 186,850.61 and 87,038.54 is: 120,003.99
Step by Step Solution
- Step 1: Write the proportion equation
135,522.20 : 186,850.61 = 87,038.54 : x - Step 2: Convert to fraction form
135,522.20/186,850.61 = 87,038.54/x - Step 3: Cross multiply
135,522.20x = 186,850.61 × 87,038.54 - Step 4: Simplify right side
135,522.20x = 16,263,204,292.51 - Step 5: Solve for x
x = 16,263,204,292.51/135,522.20 - Step 6: Final answer
x = 120,003.99
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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.