Finding the Fourth Proportional to 132,991.19, 183,313.45 and 89,954.99
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Solution
The fourth proportional to 132,991.19, 183,313.45 and 89,954.99 is: 123,992.87
Step by Step Solution
- Step 1: Write the proportion equation
132,991.19 : 183,313.45 = 89,954.99 : x - Step 2: Convert to fraction form
132,991.19/183,313.45 = 89,954.99/x - Step 3: Cross multiply
132,991.19x = 183,313.45 × 89,954.99 - Step 4: Simplify right side
132,991.19x = 16,489,959,898.95 - Step 5: Solve for x
x = 16,489,959,898.95/132,991.19 - Step 6: Final answer
x = 123,992.87
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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.