Finding the Fourth Proportional to 125,909.13, 188,863.70 and 42,803.13
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Solution
The fourth proportional to 125,909.13, 188,863.70 and 42,803.13 is: 64,204.70
Step by Step Solution
- Step 1: Write the proportion equation
125,909.13 : 188,863.70 = 42,803.13 : x - Step 2: Convert to fraction form
125,909.13/188,863.70 = 42,803.13/x - Step 3: Cross multiply
125,909.13x = 188,863.70 × 42,803.13 - Step 4: Simplify right side
125,909.13x = 8,083,957,503.38 - Step 5: Solve for x
x = 8,083,957,503.38/125,909.13 - Step 6: Final answer
x = 64,204.70
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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.