Finding the Fourth Proportional to 122,366.99, 168,863.64 and 68,650.76
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Solution
The fourth proportional to 122,366.99, 168,863.64 and 68,650.76 is: 94,736.47
Step by Step Solution
- Step 1: Write the proportion equation
122,366.99 : 168,863.64 = 68,650.76 : x - Step 2: Convert to fraction form
122,366.99/168,863.64 = 68,650.76/x - Step 3: Cross multiply
122,366.99x = 168,863.64 × 68,650.76 - Step 4: Simplify right side
122,366.99x = 11,592,616,378.05 - Step 5: Solve for x
x = 11,592,616,378.05/122,366.99 - Step 6: Final answer
x = 94,736.47
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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.