Finding the Fourth Proportional to 108,077.09, 161,898.28 and 53,878.23
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Solution
The fourth proportional to 108,077.09, 161,898.28 and 53,878.23 is: 80,708.99
Step by Step Solution
- Step 1: Write the proportion equation
108,077.09 : 161,898.28 = 53,878.23 : x - Step 2: Convert to fraction form
108,077.09/161,898.28 = 53,878.23/x - Step 3: Cross multiply
108,077.09x = 161,898.28 × 53,878.23 - Step 4: Simplify right side
108,077.09x = 8,722,792,631.75 - Step 5: Solve for x
x = 8,722,792,631.75/108,077.09 - Step 6: Final answer
x = 80,708.99
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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.