Finding the Fourth Proportional to 125,203.24, 172,779.78 and 68,612.68
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Solution
The fourth proportional to 125,203.24, 172,779.78 and 68,612.68 is: 94,685.12
Step by Step Solution
- Step 1: Write the proportion equation
125,203.24 : 172,779.78 = 68,612.68 : x - Step 2: Convert to fraction form
125,203.24/172,779.78 = 68,612.68/x - Step 3: Cross multiply
125,203.24x = 172,779.78 × 68,612.68 - Step 4: Simplify right side
125,203.24x = 11,854,883,755.61 - Step 5: Solve for x
x = 11,854,883,755.61/125,203.24 - Step 6: Final answer
x = 94,685.12
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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.