Finding the Fourth Proportional to 143,697.08, 215,545.62 and 43,857.80
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Solution
The fourth proportional to 143,697.08, 215,545.62 and 43,857.80 is: 65,786.70
Step by Step Solution
- Step 1: Write the proportion equation
143,697.08 : 215,545.62 = 43,857.80 : x - Step 2: Convert to fraction form
143,697.08/215,545.62 = 43,857.80/x - Step 3: Cross multiply
143,697.08x = 215,545.62 × 43,857.80 - Step 4: Simplify right side
143,697.08x = 9,453,356,692.84 - Step 5: Solve for x
x = 9,453,356,692.84/143,697.08 - Step 6: Final answer
x = 65,786.70
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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.