Finding the Fourth Proportional to 143,631.23, 216,522.42 and 133,997.49
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Solution
The fourth proportional to 143,631.23, 216,522.42 and 133,997.49 is: 201,999.67
Step by Step Solution
- Step 1: Write the proportion equation
143,631.23 : 216,522.42 = 133,997.49 : x - Step 2: Convert to fraction form
143,631.23/216,522.42 = 133,997.49/x - Step 3: Cross multiply
143,631.23x = 216,522.42 × 133,997.49 - Step 4: Simplify right side
143,631.23x = 29,013,460,306.24 - Step 5: Solve for x
x = 29,013,460,306.24/143,631.23 - Step 6: Final answer
x = 201,999.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.