Finding the Fourth Proportional to 125,709.22, 188,909.43 and 117,489.70
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Solution
The fourth proportional to 125,709.22, 188,909.43 and 117,489.70 is: 176,557.55
Step by Step Solution
- Step 1: Write the proportion equation
125,709.22 : 188,909.43 = 117,489.70 : x - Step 2: Convert to fraction form
125,709.22/188,909.43 = 117,489.70/x - Step 3: Cross multiply
125,709.22x = 188,909.43 × 117,489.70 - Step 4: Simplify right side
125,709.22x = 22,194,912,257.87 - Step 5: Solve for x
x = 22,194,912,257.87/125,709.22 - Step 6: Final answer
x = 176,557.55
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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.