Finding the Fourth Proportional to 170,915.09, 235,842.50 and 102,930.98
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Solution
The fourth proportional to 170,915.09, 235,842.50 and 102,930.98 is: 142,032.51
Step by Step Solution
- Step 1: Write the proportion equation
170,915.09 : 235,842.50 = 102,930.98 : x - Step 2: Convert to fraction form
170,915.09/235,842.50 = 102,930.98/x - Step 3: Cross multiply
170,915.09x = 235,842.50 × 102,930.98 - Step 4: Simplify right side
170,915.09x = 24,275,497,956.78 - Step 5: Solve for x
x = 24,275,497,956.78/170,915.09 - Step 6: Final answer
x = 142,032.51
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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.