Finding the Fourth Proportional to 121,235.74, 167,310.51 and 67,520.75
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Solution
The fourth proportional to 121,235.74, 167,310.51 and 67,520.75 is: 93,181.52
Step by Step Solution
- Step 1: Write the proportion equation
121,235.74 : 167,310.51 = 67,520.75 : x - Step 2: Convert to fraction form
121,235.74/167,310.51 = 67,520.75/x - Step 3: Cross multiply
121,235.74x = 167,310.51 × 67,520.75 - Step 4: Simplify right side
121,235.74x = 11,296,931,118.08 - Step 5: Solve for x
x = 11,296,931,118.08/121,235.74 - Step 6: Final answer
x = 93,181.52
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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.