Finding the Fourth Proportional to 122,003.96, 168,363.81 and 68,288.99
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Solution
The fourth proportional to 122,003.96, 168,363.81 and 68,288.99 is: 94,237.88
Step by Step Solution
- Step 1: Write the proportion equation
122,003.96 : 168,363.81 = 68,288.99 : x - Step 2: Convert to fraction form
122,003.96/168,363.81 = 68,288.99/x - Step 3: Cross multiply
122,003.96x = 168,363.81 × 68,288.99 - Step 4: Simplify right side
122,003.96x = 11,497,393,695.63 - Step 5: Solve for x
x = 11,497,393,695.63/122,003.96 - Step 6: Final answer
x = 94,237.88
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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.