Finding the Fourth Proportional to 125,878.62, 173,692.17 and 72,153.75
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Solution
The fourth proportional to 125,878.62, 173,692.17 and 72,153.75 is: 99,560.52
Step by Step Solution
- Step 1: Write the proportion equation
125,878.62 : 173,692.17 = 72,153.75 : x - Step 2: Convert to fraction form
125,878.62/173,692.17 = 72,153.75/x - Step 3: Cross multiply
125,878.62x = 173,692.17 × 72,153.75 - Step 4: Simplify right side
125,878.62x = 12,532,541,411.14 - Step 5: Solve for x
x = 12,532,541,411.14/125,878.62 - Step 6: Final answer
x = 99,560.52
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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.