Finding the Fourth Proportional to 113,229.12, 156,239.05 and 62,243.99
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Solution
The fourth proportional to 113,229.12, 156,239.05 and 62,243.99 is: 85,887.30
Step by Step Solution
- Step 1: Write the proportion equation
113,229.12 : 156,239.05 = 62,243.99 : x - Step 2: Convert to fraction form
113,229.12/156,239.05 = 62,243.99/x - Step 3: Cross multiply
113,229.12x = 156,239.05 × 62,243.99 - Step 4: Simplify right side
113,229.12x = 9,724,942,685.51 - Step 5: Solve for x
x = 9,724,942,685.51/113,229.12 - Step 6: Final answer
x = 85,887.30
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1.5x scale
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.