Finding the Fourth Proportional to 125,914.53, 173,709.99 and 74,917.07
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Solution
The fourth proportional to 125,914.53, 173,709.99 and 74,917.07 is: 103,354.57
Step by Step Solution
- Step 1: Write the proportion equation
125,914.53 : 173,709.99 = 74,917.07 : x - Step 2: Convert to fraction form
125,914.53/173,709.99 = 74,917.07/x - Step 3: Cross multiply
125,914.53x = 173,709.99 × 74,917.07 - Step 4: Simplify right side
125,914.53x = 13,013,842,611.98 - Step 5: Solve for x
x = 13,013,842,611.98/125,914.53 - Step 6: Final answer
x = 103,354.57
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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.