Finding the Fourth Proportional to 125,630.73, 173,385.16 and 74,643.88
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Solution
The fourth proportional to 125,630.73, 173,385.16 and 74,643.88 is: 103,017.32
Step by Step Solution
- Step 1: Write the proportion equation
125,630.73 : 173,385.16 = 74,643.88 : x - Step 2: Convert to fraction form
125,630.73/173,385.16 = 74,643.88/x - Step 3: Cross multiply
125,630.73x = 173,385.16 × 74,643.88 - Step 4: Simplify right side
125,630.73x = 12,942,141,076.82 - Step 5: Solve for x
x = 12,942,141,076.82/125,630.73 - Step 6: Final answer
x = 103,017.32
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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.