Finding the Fourth Proportional to 119,218.20, 164,535.42 and 71,497.80
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Solution
The fourth proportional to 119,218.20, 164,535.42 and 71,497.80 is: 98,675.54
Step by Step Solution
- Step 1: Write the proportion equation
119,218.20 : 164,535.42 = 71,497.80 : x - Step 2: Convert to fraction form
119,218.20/164,535.42 = 71,497.80/x - Step 3: Cross multiply
119,218.20x = 164,535.42 × 71,497.80 - Step 4: Simplify right side
119,218.20x = 11,763,920,552.08 - Step 5: Solve for x
x = 11,763,920,552.08/119,218.20 - Step 6: Final answer
x = 98,675.54
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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.