Finding the Fourth Proportional to 129,000.74, 193,503.33 and 44,763.84
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Solution
The fourth proportional to 129,000.74, 193,503.33 and 44,763.84 is: 67,146.53
Step by Step Solution
- Step 1: Write the proportion equation
129,000.74 : 193,503.33 = 44,763.84 : x - Step 2: Convert to fraction form
129,000.74/193,503.33 = 44,763.84/x - Step 3: Cross multiply
129,000.74x = 193,503.33 × 44,763.84 - Step 4: Simplify right side
129,000.74x = 8,661,952,103.59 - Step 5: Solve for x
x = 8,661,952,103.59/129,000.74 - Step 6: Final answer
x = 67,146.53
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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.