Finding the Fourth Proportional to 126,454.84, 174,511.22 and 69,869.88
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Solution
The fourth proportional to 126,454.84, 174,511.22 and 69,869.88 is: 96,422.39
Step by Step Solution
- Step 1: Write the proportion equation
126,454.84 : 174,511.22 = 69,869.88 : x - Step 2: Convert to fraction form
126,454.84/174,511.22 = 69,869.88/x - Step 3: Cross multiply
126,454.84x = 174,511.22 × 69,869.88 - Step 4: Simplify right side
126,454.84x = 12,193,078,000.05 - Step 5: Solve for x
x = 12,193,078,000.05/126,454.84 - Step 6: Final answer
x = 96,422.39
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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.