Finding the Fourth Proportional to 135,165.42, 186,523.61 and 73,913.09
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Solution
The fourth proportional to 135,165.42, 186,523.61 and 73,913.09 is: 101,997.51
Step by Step Solution
- Step 1: Write the proportion equation
135,165.42 : 186,523.61 = 73,913.09 : x - Step 2: Convert to fraction form
135,165.42/186,523.61 = 73,913.09/x - Step 3: Cross multiply
135,165.42x = 186,523.61 × 73,913.09 - Step 4: Simplify right side
135,165.42x = 13,786,536,373.05 - Step 5: Solve for x
x = 13,786,536,373.05/135,165.42 - Step 6: Final answer
x = 101,997.51
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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.