Finding the Fourth Proportional to 151,512.28, 209,088.41 and 83,531.75
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Solution
The fourth proportional to 151,512.28, 209,088.41 and 83,531.75 is: 115,274.61
Step by Step Solution
- Step 1: Write the proportion equation
151,512.28 : 209,088.41 = 83,531.75 : x - Step 2: Convert to fraction form
151,512.28/209,088.41 = 83,531.75/x - Step 3: Cross multiply
151,512.28x = 209,088.41 × 83,531.75 - Step 4: Simplify right side
151,512.28x = 17,465,519,328.92 - Step 5: Solve for x
x = 17,465,519,328.92/151,512.28 - Step 6: Final answer
x = 115,274.61
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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.