Finding the Fourth Proportional to 170,615.40, 235,447.60 and 94,135.10
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Solution
The fourth proportional to 170,615.40, 235,447.60 and 94,135.10 is: 129,905.53
Step by Step Solution
- Step 1: Write the proportion equation
170,615.40 : 235,447.60 = 94,135.10 : x - Step 2: Convert to fraction form
170,615.40/235,447.60 = 94,135.10/x - Step 3: Cross multiply
170,615.40x = 235,447.60 × 94,135.10 - Step 4: Simplify right side
170,615.40x = 22,163,883,370.76 - Step 5: Solve for x
x = 22,163,883,370.76/170,615.40 - Step 6: Final answer
x = 129,905.53
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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.