Finding the Fourth Proportional to 119,515.18, 164,929.62 and 65,799.09
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Solution
The fourth proportional to 119,515.18, 164,929.62 and 65,799.09 is: 90,802.01
Step by Step Solution
- Step 1: Write the proportion equation
119,515.18 : 164,929.62 = 65,799.09 : x - Step 2: Convert to fraction form
119,515.18/164,929.62 = 65,799.09/x - Step 3: Cross multiply
119,515.18x = 164,929.62 × 65,799.09 - Step 4: Simplify right side
119,515.18x = 10,852,218,910.05 - Step 5: Solve for x
x = 10,852,218,910.05/119,515.18 - Step 6: Final answer
x = 90,802.01
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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.