Finding the Fourth Proportional to 125,937.80, 188,469.30 and 86,571.80
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Solution
The fourth proportional to 125,937.80, 188,469.30 and 86,571.80 is: 129,557.02
Step by Step Solution
- Step 1: Write the proportion equation
125,937.80 : 188,469.30 = 86,571.80 : x - Step 2: Convert to fraction form
125,937.80/188,469.30 = 86,571.80/x - Step 3: Cross multiply
125,937.80x = 188,469.30 × 86,571.80 - Step 4: Simplify right side
125,937.80x = 16,316,126,545.74 - Step 5: Solve for x
x = 16,316,126,545.74/125,937.80 - Step 6: Final answer
x = 129,557.02
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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.