Finding the Fourth Proportional to 155,850.59, 215,063.02 and 87,869.99
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Solution
The fourth proportional to 155,850.59, 215,063.02 and 87,869.99 is: 121,254.50
Step by Step Solution
- Step 1: Write the proportion equation
155,850.59 : 215,063.02 = 87,869.99 : x - Step 2: Convert to fraction form
155,850.59/215,063.02 = 87,869.99/x - Step 3: Cross multiply
155,850.59x = 215,063.02 × 87,869.99 - Step 4: Simplify right side
155,850.59x = 18,897,585,416.77 - Step 5: Solve for x
x = 18,897,585,416.77/155,850.59 - Step 6: Final answer
x = 121,254.50
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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.