Finding the Fourth Proportional to 157,866.84, 217,855.44 and 86,250.96
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Solution
The fourth proportional to 157,866.84, 217,855.44 and 86,250.96 is: 119,025.89
Step by Step Solution
- Step 1: Write the proportion equation
157,866.84 : 217,855.44 = 86,250.96 : x - Step 2: Convert to fraction form
157,866.84/217,855.44 = 86,250.96/x - Step 3: Cross multiply
157,866.84x = 217,855.44 × 86,250.96 - Step 4: Simplify right side
157,866.84x = 18,790,240,841.22 - Step 5: Solve for x
x = 18,790,240,841.22/157,866.84 - Step 6: Final answer
x = 119,025.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.