Finding the Fourth Proportional to 143.17, 214.72 and 70.01
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Solution
The fourth proportional to 143.17, 214.72 and 70.01 is: 104.99
Step by Step Solution
- Step 1: Write the proportion equation
143.17 : 214.72 = 70.01 : x - Step 2: Convert to fraction form
143.17/214.72 = 70.01/x - Step 3: Cross multiply
143.17x = 214.72 × 70.01 - Step 4: Simplify right side
143.17x = 15,032.10 - Step 5: Solve for x
x = 15,032.10/143.17 - Step 6: Final answer
x = 104.99
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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.