Finding the Fourth Proportional to 115,657.92, 173,305.44 and 68,885.28
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Solution
The fourth proportional to 115,657.92, 173,305.44 and 68,885.28 is: 103,219.86
Step by Step Solution
- Step 1: Write the proportion equation
115,657.92 : 173,305.44 = 68,885.28 : x - Step 2: Convert to fraction form
115,657.92/173,305.44 = 68,885.28/x - Step 3: Cross multiply
115,657.92x = 173,305.44 × 68,885.28 - Step 4: Simplify right side
115,657.92x = 11,938,193,759.92 - Step 5: Solve for x
x = 11,938,193,759.92/115,657.92 - Step 6: Final answer
x = 103,219.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.