Finding the Fourth Proportional to 168,926.81, 253,460.84 and 74,108.07
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Solution
The fourth proportional to 168,926.81, 253,460.84 and 74,108.07 is: 111,193.09
Step by Step Solution
- Step 1: Write the proportion equation
168,926.81 : 253,460.84 = 74,108.07 : x - Step 2: Convert to fraction form
168,926.81/253,460.84 = 74,108.07/x - Step 3: Cross multiply
168,926.81x = 253,460.84 × 74,108.07 - Step 4: Simplify right side
168,926.81x = 18,783,493,302.44 - Step 5: Solve for x
x = 18,783,493,302.44/168,926.81 - Step 6: Final answer
x = 111,193.09
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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.