Finding the Fourth Proportional to 113,740.13, 156,961.37 and 63,439.13
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Solution
The fourth proportional to 113,740.13, 156,961.37 and 63,439.13 is: 87,545.99
Step by Step Solution
- Step 1: Write the proportion equation
113,740.13 : 156,961.37 = 63,439.13 : x - Step 2: Convert to fraction form
113,740.13/156,961.37 = 63,439.13/x - Step 3: Cross multiply
113,740.13x = 156,961.37 × 63,439.13 - Step 4: Simplify right side
113,740.13x = 9,957,492,756.41 - Step 5: Solve for x
x = 9,957,492,756.41/113,740.13 - Step 6: Final answer
x = 87,545.99
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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.