Finding the Fourth Proportional to 125,352.48, 172,989.12 and 68,763.84
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Solution
The fourth proportional to 125,352.48, 172,989.12 and 68,763.84 is: 94,895.58
Step by Step Solution
- Step 1: Write the proportion equation
125,352.48 : 172,989.12 = 68,763.84 : x - Step 2: Convert to fraction form
125,352.48/172,989.12 = 68,763.84/x - Step 3: Cross multiply
125,352.48x = 172,989.12 × 68,763.84 - Step 4: Simplify right side
125,352.48x = 11,895,396,169.42 - Step 5: Solve for x
x = 11,895,396,169.42/125,352.48 - Step 6: Final answer
x = 94,895.58
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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.