Finding the Fourth Proportional to 122,224.79, 168,666.99 and 68,513.28
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Solution
The fourth proportional to 122,224.79, 168,666.99 and 68,513.28 is: 94,546.53
Step by Step Solution
- Step 1: Write the proportion equation
122,224.79 : 168,666.99 = 68,513.28 : x - Step 2: Convert to fraction form
122,224.79/168,666.99 = 68,513.28/x - Step 3: Cross multiply
122,224.79x = 168,666.99 × 68,513.28 - Step 4: Simplify right side
122,224.79x = 11,555,928,712.63 - Step 5: Solve for x
x = 11,555,928,712.63/122,224.79 - Step 6: Final answer
x = 94,546.53
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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.