Finding the Fourth Proportional to 119,336.31, 164,684.61 and 65,620.08
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Solution
The fourth proportional to 119,336.31, 164,684.61 and 65,620.08 is: 90,555.99
Step by Step Solution
- Step 1: Write the proportion equation
119,336.31 : 164,684.61 = 65,620.08 : x - Step 2: Convert to fraction form
119,336.31/164,684.61 = 65,620.08/x - Step 3: Cross multiply
119,336.31x = 164,684.61 × 65,620.08 - Step 4: Simplify right side
119,336.31x = 10,806,617,282.97 - Step 5: Solve for x
x = 10,806,617,282.97/119,336.31 - Step 6: Final answer
x = 90,555.99
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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.