Finding the Fourth Proportional to 115,894.75, 173,901.45 and 55,173.74
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Solution
The fourth proportional to 115,894.75, 173,901.45 and 55,173.74 is: 82,788.85
Step by Step Solution
- Step 1: Write the proportion equation
115,894.75 : 173,901.45 = 55,173.74 : x - Step 2: Convert to fraction form
115,894.75/173,901.45 = 55,173.74/x - Step 3: Cross multiply
115,894.75x = 173,901.45 × 55,173.74 - Step 4: Simplify right side
115,894.75x = 9,594,792,839.24 - Step 5: Solve for x
x = 9,594,792,839.24/115,894.75 - Step 6: Final answer
x = 82,788.85
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1.5x scale
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.