Finding the Fourth Proportional to 107,497.26, 148,412.61 and 69,270.30
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Solution
The fourth proportional to 107,497.26, 148,412.61 and 69,270.30 is: 95,635.80
Step by Step Solution
- Step 1: Write the proportion equation
107,497.26 : 148,412.61 = 69,270.30 : x - Step 2: Convert to fraction form
107,497.26/148,412.61 = 69,270.30/x - Step 3: Cross multiply
107,497.26x = 148,412.61 × 69,270.30 - Step 4: Simplify right side
107,497.26x = 10,280,586,018.48 - Step 5: Solve for x
x = 10,280,586,018.48/107,497.26 - Step 6: Final answer
x = 95,635.80
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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.