Finding the Fourth Proportional to 169,722.95, 234,221.42 and 98,105.99
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Solution
The fourth proportional to 169,722.95, 234,221.42 and 98,105.99 is: 135,388.43
Step by Step Solution
- Step 1: Write the proportion equation
169,722.95 : 234,221.42 = 98,105.99 : x - Step 2: Convert to fraction form
169,722.95/234,221.42 = 98,105.99/x - Step 3: Cross multiply
169,722.95x = 234,221.42 × 98,105.99 - Step 4: Simplify right side
169,722.95x = 22,978,523,362.46 - Step 5: Solve for x
x = 22,978,523,362.46/169,722.95 - Step 6: Final answer
x = 135,388.43
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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.