Finding the Fourth Proportional to 122,962.68, 169,331.17 and 106,822.62
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Solution
The fourth proportional to 122,962.68, 169,331.17 and 106,822.62 is: 147,104.79
Step by Step Solution
- Step 1: Write the proportion equation
122,962.68 : 169,331.17 = 106,822.62 : x - Step 2: Convert to fraction form
122,962.68/169,331.17 = 106,822.62/x - Step 3: Cross multiply
122,962.68x = 169,331.17 × 106,822.62 - Step 4: Simplify right side
122,962.68x = 18,088,399,227.07 - Step 5: Solve for x
x = 18,088,399,227.07/122,962.68 - Step 6: Final answer
x = 147,104.79
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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.