Finding the Fourth Proportional to 134,672.99, 185,849.10 and 80,988.75
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Solution
The fourth proportional to 134,672.99, 185,849.10 and 80,988.75 is: 111,764.70
Step by Step Solution
- Step 1: Write the proportion equation
134,672.99 : 185,849.10 = 80,988.75 : x - Step 2: Convert to fraction form
134,672.99/185,849.10 = 80,988.75/x - Step 3: Cross multiply
134,672.99x = 185,849.10 × 80,988.75 - Step 4: Simplify right side
134,672.99x = 15,051,686,297.63 - Step 5: Solve for x
x = 15,051,686,297.63/134,672.99 - Step 6: Final answer
x = 111,764.70
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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.