Finding the Fourth Proportional to 113,763.70, 170,645.55 and 30,657.70
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Solution
The fourth proportional to 113,763.70, 170,645.55 and 30,657.70 is: 45,986.55
Step by Step Solution
- Step 1: Write the proportion equation
113,763.70 : 170,645.55 = 30,657.70 : x - Step 2: Convert to fraction form
113,763.70/170,645.55 = 30,657.70/x - Step 3: Cross multiply
113,763.70x = 170,645.55 × 30,657.70 - Step 4: Simplify right side
113,763.70x = 5,231,600,078.24 - Step 5: Solve for x
x = 5,231,600,078.24/113,763.70 - Step 6: Final answer
x = 45,986.55
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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.