Finding the Fourth Proportional to 151,721.47, 209,257.26 and 97,278.84
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Solution
The fourth proportional to 151,721.47, 209,257.26 and 97,278.84 is: 134,168.90
Step by Step Solution
- Step 1: Write the proportion equation
151,721.47 : 209,257.26 = 97,278.84 : x - Step 2: Convert to fraction form
151,721.47/209,257.26 = 97,278.84/x - Step 3: Cross multiply
151,721.47x = 209,257.26 × 97,278.84 - Step 4: Simplify right side
151,721.47x = 20,356,301,981.70 - Step 5: Solve for x
x = 20,356,301,981.70/151,721.47 - Step 6: Final answer
x = 134,168.90
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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.