Finding the Fourth Proportional to 135,409.08, 186,851.51 and 80,950.49
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Solution
The fourth proportional to 135,409.08, 186,851.51 and 80,950.49 is: 111,703.89
Step by Step Solution
- Step 1: Write the proportion equation
135,409.08 : 186,851.51 = 80,950.49 : x - Step 2: Convert to fraction form
135,409.08/186,851.51 = 80,950.49/x - Step 3: Cross multiply
135,409.08x = 186,851.51 × 80,950.49 - Step 4: Simplify right side
135,409.08x = 15,125,720,956.99 - Step 5: Solve for x
x = 15,125,720,956.99/135,409.08 - Step 6: Final answer
x = 111,703.89
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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.