Finding the Fourth Proportional to 122,724.31, 183,863.99 and 56,220.07
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Solution
The fourth proportional to 122,724.31, 183,863.99 and 56,220.07 is: 84,228.19
Step by Step Solution
- Step 1: Write the proportion equation
122,724.31 : 183,863.99 = 56,220.07 : x - Step 2: Convert to fraction form
122,724.31/183,863.99 = 56,220.07/x - Step 3: Cross multiply
122,724.31x = 183,863.99 × 56,220.07 - Step 4: Simplify right side
122,724.31x = 10,336,846,107.18 - Step 5: Solve for x
x = 10,336,846,107.18/122,724.31 - Step 6: Final answer
x = 84,228.19
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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.