Finding the Fourth Proportional to 143,855.10, 201,134.70 and 143,855.10
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Solution
The fourth proportional to 143,855.10, 201,134.70 and 143,855.10 is: 201,134.70
Step by Step Solution
- Step 1: Write the proportion equation
143,855.10 : 201,134.70 = 143,855.10 : x - Step 2: Convert to fraction form
143,855.10/201,134.70 = 143,855.10/x - Step 3: Cross multiply
143,855.10x = 201,134.70 × 143,855.10 - Step 4: Simplify right side
143,855.10x = 28,934,252,381.97 - Step 5: Solve for x
x = 28,934,252,381.97/143,855.10 - Step 6: Final answer
x = 201,134.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.