Finding the Fourth Proportional to 135,723.60, 203,486.99 and 91,240.02
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Solution
The fourth proportional to 135,723.60, 203,486.99 and 91,240.02 is: 136,793.87
Step by Step Solution
- Step 1: Write the proportion equation
135,723.60 : 203,486.99 = 91,240.02 : x - Step 2: Convert to fraction form
135,723.60/203,486.99 = 91,240.02/x - Step 3: Cross multiply
135,723.60x = 203,486.99 × 91,240.02 - Step 4: Simplify right side
135,723.60x = 18,566,156,581.14 - Step 5: Solve for x
x = 18,566,156,581.14/135,723.60 - Step 6: Final answer
x = 136,793.87
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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.