Finding the Fourth Proportional to 135,112.66, 186,445.60 and 74,679.91
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Solution
The fourth proportional to 135,112.66, 186,445.60 and 74,679.91 is: 103,052.82
Step by Step Solution
- Step 1: Write the proportion equation
135,112.66 : 186,445.60 = 74,679.91 : x - Step 2: Convert to fraction form
135,112.66/186,445.60 = 74,679.91/x - Step 3: Cross multiply
135,112.66x = 186,445.60 × 74,679.91 - Step 4: Simplify right side
135,112.66x = 13,923,740,627.90 - Step 5: Solve for x
x = 13,923,740,627.90/135,112.66 - Step 6: Final answer
x = 103,052.82
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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.