Finding the Fourth Proportional to 113,742.13, 156,964.13 and 63,441.13
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Solution
The fourth proportional to 113,742.13, 156,964.13 and 63,441.13 is: 87,548.75
Step by Step Solution
- Step 1: Write the proportion equation
113,742.13 : 156,964.13 = 63,441.13 : x - Step 2: Convert to fraction form
113,742.13/156,964.13 = 63,441.13/x - Step 3: Cross multiply
113,742.13x = 156,964.13 × 63,441.13 - Step 4: Simplify right side
113,742.13x = 9,957,981,776.67 - Step 5: Solve for x
x = 9,957,981,776.67/113,742.13 - Step 6: Final answer
x = 87,548.75
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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.