Finding the Fourth Proportional to 170,962.20, 235,960.44 and 112,716.67
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Solution
The fourth proportional to 170,962.20, 235,960.44 and 112,716.67 is: 155,570.50
Step by Step Solution
- Step 1: Write the proportion equation
170,962.20 : 235,960.44 = 112,716.67 : x - Step 2: Convert to fraction form
170,962.20/235,960.44 = 112,716.67/x - Step 3: Cross multiply
170,962.20x = 235,960.44 × 112,716.67 - Step 4: Simplify right side
170,962.20x = 26,596,675,278.31 - Step 5: Solve for x
x = 26,596,675,278.31/170,962.20 - Step 6: Final answer
x = 155,570.50
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1.5x scale
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.