Finding the Fourth Proportional to 128,836.09, 193,252.22 and 44,657.53
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Solution
The fourth proportional to 128,836.09, 193,252.22 and 44,657.53 is: 66,985.63
Step by Step Solution
- Step 1: Write the proportion equation
128,836.09 : 193,252.22 = 44,657.53 : x - Step 2: Convert to fraction form
128,836.09/193,252.22 = 44,657.53/x - Step 3: Cross multiply
128,836.09x = 193,252.22 × 44,657.53 - Step 4: Simplify right side
128,836.09x = 8,630,166,588.93 - Step 5: Solve for x
x = 8,630,166,588.93/128,836.09 - Step 6: Final answer
x = 66,985.63
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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.