Finding the Fourth Proportional to 125,115.18, 172,659.04 and 67,754.95
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Solution
The fourth proportional to 125,115.18, 172,659.04 and 67,754.95 is: 93,501.88
Step by Step Solution
- Step 1: Write the proportion equation
125,115.18 : 172,659.04 = 67,754.95 : x - Step 2: Convert to fraction form
125,115.18/172,659.04 = 67,754.95/x - Step 3: Cross multiply
125,115.18x = 172,659.04 × 67,754.95 - Step 4: Simplify right side
125,115.18x = 11,698,504,021.21 - Step 5: Solve for x
x = 11,698,504,021.21/125,115.18 - Step 6: Final answer
x = 93,501.88
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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.