Finding the Fourth Proportional to 121,506.12, 167,678.64 and 67,057.02
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Solution
The fourth proportional to 121,506.12, 167,678.64 and 67,057.02 is: 92,538.79
Step by Step Solution
- Step 1: Write the proportion equation
121,506.12 : 167,678.64 = 67,057.02 : x - Step 2: Convert to fraction form
121,506.12/167,678.64 = 67,057.02/x - Step 3: Cross multiply
121,506.12x = 167,678.64 × 67,057.02 - Step 4: Simplify right side
121,506.12x = 11,244,029,916.05 - Step 5: Solve for x
x = 11,244,029,916.05/121,506.12 - Step 6: Final answer
x = 92,538.79
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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.