Finding the Fourth Proportional to 104,879.20, 157,318.80 and 97,880.80
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Solution
The fourth proportional to 104,879.20, 157,318.80 and 97,880.80 is: 146,821.20
Step by Step Solution
- Step 1: Write the proportion equation
104,879.20 : 157,318.80 = 97,880.80 : x - Step 2: Convert to fraction form
104,879.20/157,318.80 = 97,880.80/x - Step 3: Cross multiply
104,879.20x = 157,318.80 × 97,880.80 - Step 4: Simplify right side
104,879.20x = 15,398,489,999.04 - Step 5: Solve for x
x = 15,398,489,999.04/104,879.20 - Step 6: Final answer
x = 146,821.20
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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.