Finding the Fourth Proportional to 83,603.36, 125,229.36 and 67,861.28
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Solution
The fourth proportional to 83,603.36, 125,229.36 and 67,861.28 is: 101,649.32
Step by Step Solution
- Step 1: Write the proportion equation
83,603.36 : 125,229.36 = 67,861.28 : x - Step 2: Convert to fraction form
83,603.36/125,229.36 = 67,861.28/x - Step 3: Cross multiply
83,603.36x = 125,229.36 × 67,861.28 - Step 4: Simplify right side
83,603.36x = 8,498,224,663.18 - Step 5: Solve for x
x = 8,498,224,663.18/83,603.36 - Step 6: Final answer
x = 101,649.32
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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.