Finding the Fourth Proportional to 126,229.68, 174,197.52 and 69,641.28
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Solution
The fourth proportional to 126,229.68, 174,197.52 and 69,641.28 is: 96,105.28
Step by Step Solution
- Step 1: Write the proportion equation
126,229.68 : 174,197.52 = 69,641.28 : x - Step 2: Convert to fraction form
126,229.68/174,197.52 = 69,641.28/x - Step 3: Cross multiply
126,229.68x = 174,197.52 × 69,641.28 - Step 4: Simplify right side
126,229.68x = 12,131,338,265.63 - Step 5: Solve for x
x = 12,131,338,265.63/126,229.68 - Step 6: Final answer
x = 96,105.28
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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.