Finding the Fourth Proportional to 107,478.23, 161,220.94 and 48,314.07
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Solution
The fourth proportional to 107,478.23, 161,220.94 and 48,314.07 is: 72,472.72
Step by Step Solution
- Step 1: Write the proportion equation
107,478.23 : 161,220.94 = 48,314.07 : x - Step 2: Convert to fraction form
107,478.23/161,220.94 = 48,314.07/x - Step 3: Cross multiply
107,478.23x = 161,220.94 × 48,314.07 - Step 4: Simplify right side
107,478.23x = 7,789,239,659.84 - Step 5: Solve for x
x = 7,789,239,659.84/107,478.23 - Step 6: Final answer
x = 72,472.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.