Finding the Fourth Proportional to 140,623.09, 193,876.66 and 89,617.21
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Solution
The fourth proportional to 140,623.09, 193,876.66 and 89,617.21 is: 123,554.99
Step by Step Solution
- Step 1: Write the proportion equation
140,623.09 : 193,876.66 = 89,617.21 : x - Step 2: Convert to fraction form
140,623.09/193,876.66 = 89,617.21/x - Step 3: Cross multiply
140,623.09x = 193,876.66 × 89,617.21 - Step 4: Simplify right side
140,623.09x = 17,374,685,567.11 - Step 5: Solve for x
x = 17,374,685,567.11/140,623.09 - Step 6: Final answer
x = 123,554.99
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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.