Finding the Fourth Proportional to 105,382.17, 145,431.18 and 60,066.99
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Solution
The fourth proportional to 105,382.17, 145,431.18 and 60,066.99 is: 82,894.60
Step by Step Solution
- Step 1: Write the proportion equation
105,382.17 : 145,431.18 = 60,066.99 : x - Step 2: Convert to fraction form
105,382.17/145,431.18 = 60,066.99/x - Step 3: Cross multiply
105,382.17x = 145,431.18 × 60,066.99 - Step 4: Simplify right side
105,382.17x = 8,735,613,234.75 - Step 5: Solve for x
x = 8,735,613,234.75/105,382.17 - Step 6: Final answer
x = 82,894.60
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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.