Finding the Fourth Proportional to 161,542.49, 242,313.77 and 72,692.19
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Solution
The fourth proportional to 161,542.49, 242,313.77 and 72,692.19 is: 109,038.31
Step by Step Solution
- Step 1: Write the proportion equation
161,542.49 : 242,313.77 = 72,692.19 : x - Step 2: Convert to fraction form
161,542.49/242,313.77 = 72,692.19/x - Step 3: Cross multiply
161,542.49x = 242,313.77 × 72,692.19 - Step 4: Simplify right side
161,542.49x = 17,614,318,790.19 - Step 5: Solve for x
x = 17,614,318,790.19/161,542.49 - Step 6: Final answer
x = 109,038.31
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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.