Finding the Fourth Proportional to 168,735.56, 253,227.68 and 79,988.72
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Solution
The fourth proportional to 168,735.56, 253,227.68 and 79,988.72 is: 120,042.02
Step by Step Solution
- Step 1: Write the proportion equation
168,735.56 : 253,227.68 = 79,988.72 : x - Step 2: Convert to fraction form
168,735.56/253,227.68 = 79,988.72/x - Step 3: Cross multiply
168,735.56x = 253,227.68 × 79,988.72 - Step 4: Simplify right side
168,735.56x = 20,255,357,991.77 - Step 5: Solve for x
x = 20,255,357,991.77/168,735.56 - Step 6: Final answer
x = 120,042.02
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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.