Finding the Fourth Proportional to 103,615.40, 155,346.30 and 44,402.60
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Solution
The fourth proportional to 103,615.40, 155,346.30 and 44,402.60 is: 66,570.99
Step by Step Solution
- Step 1: Write the proportion equation
103,615.40 : 155,346.30 = 44,402.60 : x - Step 2: Convert to fraction form
103,615.40/155,346.30 = 44,402.60/x - Step 3: Cross multiply
103,615.40x = 155,346.30 × 44,402.60 - Step 4: Simplify right side
103,615.40x = 6,897,779,620.38 - Step 5: Solve for x
x = 6,897,779,620.38/103,615.40 - Step 6: Final answer
x = 66,570.99
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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.