Finding the Fourth Proportional to 119,320.62, 164,660.97 and 65,605.17
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Solution
The fourth proportional to 119,320.62, 164,660.97 and 65,605.17 is: 90,534.32
Step by Step Solution
- Step 1: Write the proportion equation
119,320.62 : 164,660.97 = 65,605.17 : x - Step 2: Convert to fraction form
119,320.62/164,660.97 = 65,605.17/x - Step 3: Cross multiply
119,320.62x = 164,660.97 × 65,605.17 - Step 4: Simplify right side
119,320.62x = 10,802,610,929.21 - Step 5: Solve for x
x = 10,802,610,929.21/119,320.62 - Step 6: Final answer
x = 90,534.32
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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.