Finding the Fourth Proportional to 144,782.79, 216,183.88 and 129,692.49
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Solution
The fourth proportional to 144,782.79, 216,183.88 and 129,692.49 is: 193,651.65
Step by Step Solution
- Step 1: Write the proportion equation
144,782.79 : 216,183.88 = 129,692.49 : x - Step 2: Convert to fraction form
144,782.79/216,183.88 = 129,692.49/x - Step 3: Cross multiply
144,782.79x = 216,183.88 × 129,692.49 - Step 4: Simplify right side
144,782.79x = 28,037,425,695.06 - Step 5: Solve for x
x = 28,037,425,695.06/144,782.79 - Step 6: Final answer
x = 193,651.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.