Finding the Fourth Proportional to 144,929.21, 199,910.27 and 104,702.09
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Solution
The fourth proportional to 144,929.21, 199,910.27 and 104,702.09 is: 144,422.39
Step by Step Solution
- Step 1: Write the proportion equation
144,929.21 : 199,910.27 = 104,702.09 : x - Step 2: Convert to fraction form
144,929.21/199,910.27 = 104,702.09/x - Step 3: Cross multiply
144,929.21x = 199,910.27 × 104,702.09 - Step 4: Simplify right side
144,929.21x = 20,931,022,557.95 - Step 5: Solve for x
x = 20,931,022,557.95/144,929.21 - Step 6: Final answer
x = 144,422.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.