Finding the Fourth Proportional to 157,328.82, 217,115.26 and 89,347.21
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Solution
The fourth proportional to 157,328.82, 217,115.26 and 89,347.21 is: 123,299.99
Step by Step Solution
- Step 1: Write the proportion equation
157,328.82 : 217,115.26 = 89,347.21 : x - Step 2: Convert to fraction form
157,328.82/217,115.26 = 89,347.21/x - Step 3: Cross multiply
157,328.82x = 217,115.26 × 89,347.21 - Step 4: Simplify right side
157,328.82x = 19,398,641,963.27 - Step 5: Solve for x
x = 19,398,641,963.27/157,328.82 - Step 6: Final answer
x = 123,299.99
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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.