Finding the Fourth Proportional to 128,984.94, 193,479.66 and 44,748.09
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Solution
The fourth proportional to 128,984.94, 193,479.66 and 44,748.09 is: 67,122.92
Step by Step Solution
- Step 1: Write the proportion equation
128,984.94 : 193,479.66 = 44,748.09 : x - Step 2: Convert to fraction form
128,984.94/193,479.66 = 44,748.09/x - Step 3: Cross multiply
128,984.94x = 193,479.66 × 44,748.09 - Step 4: Simplify right side
128,984.94x = 8,657,845,238.85 - Step 5: Solve for x
x = 8,657,845,238.85/128,984.94 - Step 6: Final answer
x = 67,122.92
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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.