Finding the Fourth Proportional to 135,739.42, 203,639.52 and 40,971.28
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Solution
The fourth proportional to 135,739.42, 203,639.52 and 40,971.28 is: 61,466.09
Step by Step Solution
- Step 1: Write the proportion equation
135,739.42 : 203,639.52 = 40,971.28 : x - Step 2: Convert to fraction form
135,739.42/203,639.52 = 40,971.28/x - Step 3: Cross multiply
135,739.42x = 203,639.52 × 40,971.28 - Step 4: Simplify right side
135,739.42x = 8,343,371,792.99 - Step 5: Solve for x
x = 8,343,371,792.99/135,739.42 - Step 6: Final answer
x = 61,466.09
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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.