Finding the Fourth Proportional to 121,451.75, 182,206.80 and 38,345.75
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Solution
The fourth proportional to 121,451.75, 182,206.80 and 38,345.75 is: 57,527.84
Step by Step Solution
- Step 1: Write the proportion equation
121,451.75 : 182,206.80 = 38,345.75 : x - Step 2: Convert to fraction form
121,451.75/182,206.80 = 38,345.75/x - Step 3: Cross multiply
121,451.75x = 182,206.80 × 38,345.75 - Step 4: Simplify right side
121,451.75x = 6,986,856,401.10 - Step 5: Solve for x
x = 6,986,856,401.10/121,451.75 - Step 6: Final answer
x = 57,527.84
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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.