Finding the Fourth Proportional to 125,920.31, 173,769.71 and 69,331.68
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Solution
The fourth proportional to 125,920.31, 173,769.71 and 69,331.68 is: 95,677.54
Step by Step Solution
- Step 1: Write the proportion equation
125,920.31 : 173,769.71 = 69,331.68 : x - Step 2: Convert to fraction form
125,920.31/173,769.71 = 69,331.68/x - Step 3: Cross multiply
125,920.31x = 173,769.71 × 69,331.68 - Step 4: Simplify right side
125,920.31x = 12,047,745,580.75 - Step 5: Solve for x
x = 12,047,745,580.75/125,920.31 - Step 6: Final answer
x = 95,677.54
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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.