Finding the Fourth Proportional to 135,201.24, 186,591.53 and 77,842.71
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Solution
The fourth proportional to 135,201.24, 186,591.53 and 77,842.71 is: 107,430.90
Step by Step Solution
- Step 1: Write the proportion equation
135,201.24 : 186,591.53 = 77,842.71 : x - Step 2: Convert to fraction form
135,201.24/186,591.53 = 77,842.71/x - Step 3: Cross multiply
135,201.24x = 186,591.53 × 77,842.71 - Step 4: Simplify right side
135,201.24x = 14,524,790,552.85 - Step 5: Solve for x
x = 14,524,790,552.85/135,201.24 - Step 6: Final answer
x = 107,430.90
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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.