Finding the Fourth Proportional to 103,207.55, 154,826.72 and 36,642.13
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Solution
The fourth proportional to 103,207.55, 154,826.72 and 36,642.13 is: 54,968.66
Step by Step Solution
- Step 1: Write the proportion equation
103,207.55 : 154,826.72 = 36,642.13 : x - Step 2: Convert to fraction form
103,207.55/154,826.72 = 36,642.13/x - Step 3: Cross multiply
103,207.55x = 154,826.72 × 36,642.13 - Step 4: Simplify right side
103,207.55x = 5,673,180,506.25 - Step 5: Solve for x
x = 5,673,180,506.25/103,207.55 - Step 6: Final answer
x = 54,968.66
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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.