Finding the Fourth Proportional to 125,236.63, 172,827.15 and 74,935.63
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Solution
The fourth proportional to 125,236.63, 172,827.15 and 74,935.63 is: 103,411.53
Step by Step Solution
- Step 1: Write the proportion equation
125,236.63 : 172,827.15 = 74,935.63 : x - Step 2: Convert to fraction form
125,236.63/172,827.15 = 74,935.63/x - Step 3: Cross multiply
125,236.63x = 172,827.15 × 74,935.63 - Step 4: Simplify right side
125,236.63x = 12,950,910,502.22 - Step 5: Solve for x
x = 12,950,910,502.22/125,236.63 - Step 6: Final answer
x = 103,411.53
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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.