Finding the Fourth Proportional to 121,471.12, 167,630.36 and 67,022.04
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Solution
The fourth proportional to 121,471.12, 167,630.36 and 67,022.04 is: 92,490.53
Step by Step Solution
- Step 1: Write the proportion equation
121,471.12 : 167,630.36 = 67,022.04 : x - Step 2: Convert to fraction form
121,471.12/167,630.36 = 67,022.04/x - Step 3: Cross multiply
121,471.12x = 167,630.36 × 67,022.04 - Step 4: Simplify right side
121,471.12x = 11,234,928,693.13 - Step 5: Solve for x
x = 11,234,928,693.13/121,471.12 - Step 6: Final answer
x = 92,490.53
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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.