Finding the Fourth Proportional to 125,878.40, 173,697.94 and 74,192.12
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Solution
The fourth proportional to 125,878.40, 173,697.94 and 74,192.12 is: 102,376.73
Step by Step Solution
- Step 1: Write the proportion equation
125,878.40 : 173,697.94 = 74,192.12 : x - Step 2: Convert to fraction form
125,878.40/173,697.94 = 74,192.12/x - Step 3: Cross multiply
125,878.40x = 173,697.94 × 74,192.12 - Step 4: Simplify right side
125,878.40x = 12,887,018,408.23 - Step 5: Solve for x
x = 12,887,018,408.23/125,878.40 - Step 6: Final answer
x = 102,376.73
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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.