Finding the Fourth Proportional to 119,349.98, 164,699.68 and 65,634.99
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Solution
The fourth proportional to 119,349.98, 164,699.68 and 65,634.99 is: 90,574.48
Step by Step Solution
- Step 1: Write the proportion equation
119,349.98 : 164,699.68 = 65,634.99 : x - Step 2: Convert to fraction form
119,349.98/164,699.68 = 65,634.99/x - Step 3: Cross multiply
119,349.98x = 164,699.68 × 65,634.99 - Step 4: Simplify right side
119,349.98x = 10,810,061,685.72 - Step 5: Solve for x
x = 10,810,061,685.72/119,349.98 - Step 6: Final answer
x = 90,574.48
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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.