Finding the Fourth Proportional to 143,416.14, 215,115.99 and 54,678.60
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Solution
The fourth proportional to 143,416.14, 215,115.99 and 54,678.60 is: 82,014.77
Step by Step Solution
- Step 1: Write the proportion equation
143,416.14 : 215,115.99 = 54,678.60 : x - Step 2: Convert to fraction form
143,416.14/215,115.99 = 54,678.60/x - Step 3: Cross multiply
143,416.14x = 215,115.99 × 54,678.60 - Step 4: Simplify right side
143,416.14x = 11,762,241,170.81 - Step 5: Solve for x
x = 11,762,241,170.81/143,416.14 - Step 6: Final answer
x = 82,014.77
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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.