Finding the Fourth Proportional to 125,847.40, 188,333.70 and 115,349.80
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Solution
The fourth proportional to 125,847.40, 188,333.70 and 115,349.80 is: 172,623.79
Step by Step Solution
- Step 1: Write the proportion equation
125,847.40 : 188,333.70 = 115,349.80 : x - Step 2: Convert to fraction form
125,847.40/188,333.70 = 115,349.80/x - Step 3: Cross multiply
125,847.40x = 188,333.70 × 115,349.80 - Step 4: Simplify right side
125,847.40x = 21,724,254,628.26 - Step 5: Solve for x
x = 21,724,254,628.26/125,847.40 - Step 6: Final answer
x = 172,623.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.