Finding the Fourth Proportional to 178,930.43, 268,395.75 and 84,091.03
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Solution
The fourth proportional to 178,930.43, 268,395.75 and 84,091.03 is: 126,136.59
Step by Step Solution
- Step 1: Write the proportion equation
178,930.43 : 268,395.75 = 84,091.03 : x - Step 2: Convert to fraction form
178,930.43/268,395.75 = 84,091.03/x - Step 3: Cross multiply
178,930.43x = 268,395.75 × 84,091.03 - Step 4: Simplify right side
178,930.43x = 22,569,674,394.13 - Step 5: Solve for x
x = 22,569,674,394.13/178,930.43 - Step 6: Final answer
x = 126,136.59
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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.