Finding the Fourth Proportional to 125,939.70, 188,909.55 and 125,939.70
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Solution
The fourth proportional to 125,939.70, 188,909.55 and 125,939.70 is: 188,909.55
Step by Step Solution
- Step 1: Write the proportion equation
125,939.70 : 188,909.55 = 125,939.70 : x - Step 2: Convert to fraction form
125,939.70/188,909.55 = 125,939.70/x - Step 3: Cross multiply
125,939.70x = 188,909.55 × 125,939.70 - Step 4: Simplify right side
125,939.70x = 23,791,212,054.14 - Step 5: Solve for x
x = 23,791,212,054.14/125,939.70 - Step 6: Final answer
x = 188,909.55
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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.