Finding the Fourth Proportional to 170,455.36, 235,176.27 and 98,821.09
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Solution
The fourth proportional to 170,455.36, 235,176.27 and 98,821.09 is: 136,342.88
Step by Step Solution
- Step 1: Write the proportion equation
170,455.36 : 235,176.27 = 98,821.09 : x - Step 2: Convert to fraction form
170,455.36/235,176.27 = 98,821.09/x - Step 3: Cross multiply
170,455.36x = 235,176.27 × 98,821.09 - Step 4: Simplify right side
170,455.36x = 23,240,375,000.18 - Step 5: Solve for x
x = 23,240,375,000.18/170,455.36 - Step 6: Final answer
x = 136,342.88
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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.