Finding the Fourth Proportional to 125,352.85, 172,976.64 and 68,764.23
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Solution
The fourth proportional to 125,352.85, 172,976.64 and 68,764.23 is: 94,888.99
Step by Step Solution
- Step 1: Write the proportion equation
125,352.85 : 172,976.64 = 68,764.23 : x - Step 2: Convert to fraction form
125,352.85/172,976.64 = 68,764.23/x - Step 3: Cross multiply
125,352.85x = 172,976.64 × 68,764.23 - Step 4: Simplify right side
125,352.85x = 11,894,605,457.59 - Step 5: Solve for x
x = 11,894,605,457.59/125,352.85 - Step 6: Final answer
x = 94,888.99
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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.