Finding the Fourth Proportional to 128,762.70, 193,135.58 and 44,503.26
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Solution
The fourth proportional to 128,762.70, 193,135.58 and 44,503.26 is: 66,751.96
Step by Step Solution
- Step 1: Write the proportion equation
128,762.70 : 193,135.58 = 44,503.26 : x - Step 2: Convert to fraction form
128,762.70/193,135.58 = 44,503.26/x - Step 3: Cross multiply
128,762.70x = 193,135.58 × 44,503.26 - Step 4: Simplify right side
128,762.70x = 8,595,162,931.99 - Step 5: Solve for x
x = 8,595,162,931.99/128,762.70 - Step 6: Final answer
x = 66,751.96
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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.