Finding the Fourth Proportional to 163,640.07, 225,824.61 and 91,044.02
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Solution
The fourth proportional to 163,640.07, 225,824.61 and 91,044.02 is: 125,641.47
Step by Step Solution
- Step 1: Write the proportion equation
163,640.07 : 225,824.61 = 91,044.02 : x - Step 2: Convert to fraction form
163,640.07/225,824.61 = 91,044.02/x - Step 3: Cross multiply
163,640.07x = 225,824.61 × 91,044.02 - Step 4: Simplify right side
163,640.07x = 20,559,979,180.21 - Step 5: Solve for x
x = 20,559,979,180.21/163,640.07 - Step 6: Final answer
x = 125,641.47
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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.