Finding the Fourth Proportional to 121,472.13, 167,630.42 and 67,024.80
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Solution
The fourth proportional to 121,472.13, 167,630.42 and 67,024.80 is: 92,493.60
Step by Step Solution
- Step 1: Write the proportion equation
121,472.13 : 167,630.42 = 67,024.80 : x - Step 2: Convert to fraction form
121,472.13/167,630.42 = 67,024.80/x - Step 3: Cross multiply
121,472.13x = 167,630.42 × 67,024.80 - Step 4: Simplify right side
121,472.13x = 11,235,395,039.29 - Step 5: Solve for x
x = 11,235,395,039.29/121,472.13 - Step 6: Final answer
x = 92,493.60
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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.