Finding the Fourth Proportional to 157,884.59, 217,874.33 and 86,267.09
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Solution
The fourth proportional to 157,884.59, 217,874.33 and 86,267.09 is: 119,045.09
Step by Step Solution
- Step 1: Write the proportion equation
157,884.59 : 217,874.33 = 86,267.09 : x - Step 2: Convert to fraction form
157,884.59/217,874.33 = 86,267.09/x - Step 3: Cross multiply
157,884.59x = 217,874.33 × 86,267.09 - Step 4: Simplify right side
157,884.59x = 18,795,384,650.47 - Step 5: Solve for x
x = 18,795,384,650.47/157,884.59 - Step 6: Final answer
x = 119,045.09
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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.